D, we have interpolation, and when D > M, we have decimation. Step 2 alone allows high-frequency signal components to be misinterpreted by subsequent users of the data, which is a form of distortion called aliasing. What will be the output of the following code? A 3-V 230-MHz CMOS Decimation Subsampler.// IEEE transactions on circuits and systems— Vol. For the M > L case, the anti-aliasing filter cutoff, University. - P. 258. If you wish to reduce the sampling rate by a factor of three to 10 kHz, you must ensure that you have no components greater than 5 kHz, which is the Nyquist frequency for the reduced rate. It also includes the collection of objective types questions on C Arithmetic Instruction, Array on C and pointers in C. 1. Decimation in Time algorithm (DIT). Filter LPFM/D must sufficiently attenuate the interpolation spectral images so they don't contaminate our desired signal beyond acceptable limits after decimation. Science and Technology (PIC S&T’2016)”. so that is the maximum cutoff frequency of an ideal anti-aliasing filter.[A]. ANSWER: (c) Greater than. Before b. The cost of the digital processors is cheaper because - Published on 27 Nov 15. a. The general syntax for declaring an enumeration in C# is. 38) To change the sampling rate for better efficiency in two or multiple stages, The decimation and interpolation factors must be _____unity. Comments. Test Set - 1 - Digital Signal Processing - This test comprises 40 questions. View Answer Answer: Reduced 9 In tapped delay line filter, the tapped line is also known as _____ A Pick-off node. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. MCQ on Memory allocation and compilation process. ), A signal can be downsampled (without doing any filtering) whenever it is “oversampled”, that is, when a sampling rate was used that was greater than the Nyquist criteria required. In practice the cutoff frequency is placed far enough below the theoretical cutoff that the filter's skirt is contained below the theoretical cutoff. Decimation involves throwing away samples, so you can only decimate by integer factors; you cannot decimate by fractional factors. Option A: Equal Option B: Less Option C: Greater Option D: Zero Q22. Saska Lindfors, Aarno Pärssinen, Kari A. I. Halonen. 2020/2021. The passband ripple is whatever your application can tolerate. If the interpolation factor is I = 256, the A/D converter output can be obtained by averaging successive non-overlapping blocks of 128 bits. You get aliasing–just as with other cases of violating the Nyquist criteria. Using two or three stages is usually optimal or near-optimal. [6][c] It is sometimes used in derivations of the polyphase method. For IIR filters, you still have to do part or all of the filter calculation for each input, even when the corresponding output won’t be used. B. REVOKE. 10. When T has units of seconds, T Processor allows time sharing among a number of signals. Replacing T with MT in the formulas above gives the DTFT of the decimated sequence, x[nM]: The periodic summation has been reduced in amplitude and periodicity by a factor of M. An example of both these distributions is depicted in the two traces of Fig 1. 1. Organising Class 12 MCQs Questions with Answers. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction (filtering) and sample-rate reduction. This is because both amount of data (per second) and the length of the filter increase by two, so convolution goes up by four. M.H. This set of MCQ on C programming language includes the collection of MCQ questions on fundamental of C programming language. Abdul Kalam Technical University . The most immediate reason to decimate is simply to reduce the sampling rate at the output of one system so a system operating at a lower sampling rate can input the signal. If the interpolation functions $ f _ {n} ( z) $ are represented by the partial sums of some series of functions, the series is sometimes called an interpolation series. b. (Note that there will always. The passband lower frequency is zero; the passband upper frequency is whatever information bandwidth you want to preserve after decimating. Question 1. Course. 0.5 Mcq - mcq. Devendra Pratap. M = 3. It includes MCQ on declaring an enumeration in C#, keywords, static polymorphism and Operator overloading in C#, preprocessor directives in C#, and Conditional directives used in C#. MCQ 15.3 If an attribute has more than two classes, it is said to be: (a) Mainfold classification (b) Trichotomy (c) Dichotomous (d) All of the above MCQ 15.4 The χ2-test should not be used if any expected frequency is: (a) Less than 10 (b) Less than 5 (c) Equal to 5 (d) More than 5 MCQ 15.5 The total of all frequencies n is of order: If you put in a sine whose frequency is within the decimator’s passband, the output should be distortion-free (once the filter reaches steady-state), and the frequency of the output should be the same as the frequency of the input, in terms of absolute Hz. A) enum {enum list}; B) enum {enum list}; C) enum {enum list}; D) None of the above. The broad plans are made in achieving the goals. Digital signal processing (REC-503) Uploaded by. The hardware is cheaper. – Kharkiv. It is usually symbolized by “M”, so input rate / output rate=M. d. Less power consumption . a. The block diagram notation of the decimation process is depicted in Figure 9.1. Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers can employ during the system design process. Share. Notice that for the above esti-mate we exploit the fact the most atomic operations are independent from each other and the exact or-der of the decimation steps matters only for direct neighbors. This set of MCQ questions on software development strategies includes multiple-choice questions on fundamentals of software development strategies in software engineering. There isn’t a simple answer to this one: the answer varies depending on many things, so if you really want to find the optimum, you have to evaluate the resource requirements of each possibility. 0.5 However, here are a couple of rules of thumb which may help narrow down the choices: The multirate book references give additional, more specific guidance. On-going process: Strategic management is a on-going process which is in existence through out the life of organization. Dr. A.P.J. 3. Shaping broad plans: First, it is an on-going process in which broad plans are firstly formulated than implementing and finally. When implemented that way, it is called a polyphase filter. Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. Data Address b. Instruction Address c. Both a and b d. In most cases, though, you’ll end up lowpass-filtering your signal prior to downsampling, in order to enforce the Nyquist criteria at the post-decimation rate. The fact that only the outputs which will be used have to be calculated explains why decimating filters are almost always implemented using FIR filters! These objective type Digital Signal Processing questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. d) All of the above . a) True b) False View Answer. [e][f] In Figure 9.2 below, it illustrates the concept of 3-fold decimation i.e. Then the discrete-time Fourier transform (DTFT) is a Fourier series representation of a periodic summation of X(f):[d]. The down sampling process is called decimation. For example, if compact disc audio at 44,100 samples/second is decimated by a factor of 5/4, the resulting sample rate is 35,280. The following list of topics deals with Multiple choice question (MCQ) of different concepts of Processes. You still have to store every input sample in the FIR’s delay line, so the memory requirement is the same size as for a non-decimated FIR having the same number of taps. Please sign in or register to post comments. Therefore, both operations can be accomplished by a single filter with the lower of the two cutoff frequencies. To implement the downsampling part (by a downsampling factor of “M”) simply keep every Mth sample, and throw away the M-1 samples in between. In the case of FIR filters, any output is a function only of the past inputs (because there is no feedback). 6. (Depending on the filter topology used, certain feed-forward parts of the calculation can be omitted.),. Decimation is a process in which the sampling rate is _____ a) enhanced. f x[•] represents the input sequence being downsampled. Step size varies according to the values … where the h[•] sequence is the impulse response, and K is its length. D. UPDATE. A. RENAME. 2. The dot product is the sum of the dot products of each subsequence with the corresponding samples of the x[•] sequence. For example, when decimating by a factor of 60 in three stages, decimate by 5, then by 4, then by 3. Almost anything you do to/with the signal can be done with fewer operations at a lower sample rate, and the workload is almost always reduced by more than a factor of M. For example, if you double the sample rate, an equivalent filter will require four times as many operations to implement. You can then do impulse, step, and sine tests on it just like you can on an ordinary FIR. This set of multiple-choice questions – MCQ on data mining includes collections of MCQ questions on fundamentals of data mining techniques. Q8. Equal to c. Greater than d. None of the above. , 52, No. 38) Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. It includes MCQ questions on object-oriented and reuse models of software development strategies, object-oriented model, Rational Unified Process Model (RUP) , Commercial off-the Self Model (COTS) and Re-engineering Model. decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated filter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing – p.2/25. {\displaystyle {\tfrac {0.5}{M}}} A system component that performs decimation is called a decimator. It includes objective questions on the application of data mining, data mining functionality, the strategic value of data mining, and the data mining methodologies. Q9. Dear Readers, Welcome to Digital Signal Processing multiple choice questions and answers with explanation. For example, to decimate by a factor of 15, you could decimate by 5, then decimate by 3. Therefore, the larger the decimation factor is, the larger the savings, percentage-wise. Sliusar I.I., Slyusar V.I., Voloshko S.V., Smolyar V.G. –––––––––– is the term most widely used to denote the elements of a digital image. A Reduced. a. A simple way to think of the amount of computation required to implement a FIR decimator is that it is equal to the computation required for a non-decimating N-tap filter operating at the output rate. The purpose of the anti-aliasing filter is to ensure that the reduced periodicity does not create overlap. Throughout this FAQ, though, we’ll just use the term “decimation” loosely, sometimes to mean “downsampling”. C. GRANT. You can use a step response test. D Pick-down node. b) At the time of. Iowegian’s ScopeFIR comes with a free set of multirate algorithms, including FIR decimation functions in C. Just download and install the ScopeFIR distribution file. cycles per intermediate sample, is the lower frequency. SQL MCQ Questions and answers. Less than b. Discrete time Fourier Transform (DFFT) of an aperiodic signal is continuous function of Ω and is periodic with period 2π. In the case M=2, h[•] can be designed as a half-band filter, where almost half of the coefficients are zero and need not be included in the dot products. (This just boils down to applying the Nyquist criteria to the input signal, relative to the new sampling rate.). In SQL, which of the following is not a data definition language commands? Figure 10-7. Shift the delay line by M places to make room for the inputs of the next decimation. link brightness_4 code. - Geneva, Switzerland: CERN (2008). Septic Tank Requirements,
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D, we have interpolation, and when D > M, we have decimation. Step 2 alone allows high-frequency signal components to be misinterpreted by subsequent users of the data, which is a form of distortion called aliasing. What will be the output of the following code? A 3-V 230-MHz CMOS Decimation Subsampler.// IEEE transactions on circuits and systems— Vol. For the M > L case, the anti-aliasing filter cutoff, University. - P. 258. If you wish to reduce the sampling rate by a factor of three to 10 kHz, you must ensure that you have no components greater than 5 kHz, which is the Nyquist frequency for the reduced rate. It also includes the collection of objective types questions on C Arithmetic Instruction, Array on C and pointers in C. 1. Decimation in Time algorithm (DIT). Filter LPFM/D must sufficiently attenuate the interpolation spectral images so they don't contaminate our desired signal beyond acceptable limits after decimation. Science and Technology (PIC S&T’2016)”. so that is the maximum cutoff frequency of an ideal anti-aliasing filter.[A]. ANSWER: (c) Greater than. Before b. The cost of the digital processors is cheaper because - Published on 27 Nov 15. a. The general syntax for declaring an enumeration in C# is. 38) To change the sampling rate for better efficiency in two or multiple stages, The decimation and interpolation factors must be _____unity. Comments. Test Set - 1 - Digital Signal Processing - This test comprises 40 questions. View Answer Answer: Reduced 9 In tapped delay line filter, the tapped line is also known as _____ A Pick-off node. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. MCQ on Memory allocation and compilation process. ), A signal can be downsampled (without doing any filtering) whenever it is “oversampled”, that is, when a sampling rate was used that was greater than the Nyquist criteria required. In practice the cutoff frequency is placed far enough below the theoretical cutoff that the filter's skirt is contained below the theoretical cutoff. Decimation involves throwing away samples, so you can only decimate by integer factors; you cannot decimate by fractional factors. Option A: Equal Option B: Less Option C: Greater Option D: Zero Q22. Saska Lindfors, Aarno Pärssinen, Kari A. I. Halonen. 2020/2021. The passband ripple is whatever your application can tolerate. If the interpolation factor is I = 256, the A/D converter output can be obtained by averaging successive non-overlapping blocks of 128 bits. You get aliasing–just as with other cases of violating the Nyquist criteria. Using two or three stages is usually optimal or near-optimal. [6][c] It is sometimes used in derivations of the polyphase method. For IIR filters, you still have to do part or all of the filter calculation for each input, even when the corresponding output won’t be used. B. REVOKE. 10. When T has units of seconds, T Processor allows time sharing among a number of signals. Replacing T with MT in the formulas above gives the DTFT of the decimated sequence, x[nM]: The periodic summation has been reduced in amplitude and periodicity by a factor of M. An example of both these distributions is depicted in the two traces of Fig 1. 1. Organising Class 12 MCQs Questions with Answers. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction (filtering) and sample-rate reduction. This is because both amount of data (per second) and the length of the filter increase by two, so convolution goes up by four. M.H. This set of MCQ on C programming language includes the collection of MCQ questions on fundamental of C programming language. Abdul Kalam Technical University . The most immediate reason to decimate is simply to reduce the sampling rate at the output of one system so a system operating at a lower sampling rate can input the signal. If the interpolation functions $ f _ {n} ( z) $ are represented by the partial sums of some series of functions, the series is sometimes called an interpolation series. b. (Note that there will always. The passband lower frequency is zero; the passband upper frequency is whatever information bandwidth you want to preserve after decimating. Question 1. Course. 0.5 Mcq - mcq. Devendra Pratap. M = 3. It includes MCQ on declaring an enumeration in C#, keywords, static polymorphism and Operator overloading in C#, preprocessor directives in C#, and Conditional directives used in C#. MCQ 15.3 If an attribute has more than two classes, it is said to be: (a) Mainfold classification (b) Trichotomy (c) Dichotomous (d) All of the above MCQ 15.4 The χ2-test should not be used if any expected frequency is: (a) Less than 10 (b) Less than 5 (c) Equal to 5 (d) More than 5 MCQ 15.5 The total of all frequencies n is of order: If you put in a sine whose frequency is within the decimator’s passband, the output should be distortion-free (once the filter reaches steady-state), and the frequency of the output should be the same as the frequency of the input, in terms of absolute Hz. A) enum {enum list}; B) enum {enum list}; C) enum {enum list}; D) None of the above. The broad plans are made in achieving the goals. Digital signal processing (REC-503) Uploaded by. The hardware is cheaper. – Kharkiv. It is usually symbolized by “M”, so input rate / output rate=M. d. Less power consumption . a. The block diagram notation of the decimation process is depicted in Figure 9.1. Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers can employ during the system design process. Share. Notice that for the above esti-mate we exploit the fact the most atomic operations are independent from each other and the exact or-der of the decimation steps matters only for direct neighbors. This set of MCQ questions on software development strategies includes multiple-choice questions on fundamentals of software development strategies in software engineering. There isn’t a simple answer to this one: the answer varies depending on many things, so if you really want to find the optimum, you have to evaluate the resource requirements of each possibility. 0.5 However, here are a couple of rules of thumb which may help narrow down the choices: The multirate book references give additional, more specific guidance. On-going process: Strategic management is a on-going process which is in existence through out the life of organization. Dr. A.P.J. 3. Shaping broad plans: First, it is an on-going process in which broad plans are firstly formulated than implementing and finally. When implemented that way, it is called a polyphase filter. Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. Data Address b. Instruction Address c. Both a and b d. In most cases, though, you’ll end up lowpass-filtering your signal prior to downsampling, in order to enforce the Nyquist criteria at the post-decimation rate. The fact that only the outputs which will be used have to be calculated explains why decimating filters are almost always implemented using FIR filters! These objective type Digital Signal Processing questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. d) All of the above . a) True b) False View Answer. [e][f] In Figure 9.2 below, it illustrates the concept of 3-fold decimation i.e. Then the discrete-time Fourier transform (DTFT) is a Fourier series representation of a periodic summation of X(f):[d]. The down sampling process is called decimation. For example, if compact disc audio at 44,100 samples/second is decimated by a factor of 5/4, the resulting sample rate is 35,280. The following list of topics deals with Multiple choice question (MCQ) of different concepts of Processes. You still have to store every input sample in the FIR’s delay line, so the memory requirement is the same size as for a non-decimated FIR having the same number of taps. Please sign in or register to post comments. Therefore, both operations can be accomplished by a single filter with the lower of the two cutoff frequencies. To implement the downsampling part (by a downsampling factor of “M”) simply keep every Mth sample, and throw away the M-1 samples in between. In the case of FIR filters, any output is a function only of the past inputs (because there is no feedback). 6. (Depending on the filter topology used, certain feed-forward parts of the calculation can be omitted.),. Decimation is a process in which the sampling rate is _____ a) enhanced. f x[•] represents the input sequence being downsampled. Step size varies according to the values … where the h[•] sequence is the impulse response, and K is its length. D. UPDATE. A. RENAME. 2. The dot product is the sum of the dot products of each subsequence with the corresponding samples of the x[•] sequence. For example, when decimating by a factor of 60 in three stages, decimate by 5, then by 4, then by 3. Almost anything you do to/with the signal can be done with fewer operations at a lower sample rate, and the workload is almost always reduced by more than a factor of M. For example, if you double the sample rate, an equivalent filter will require four times as many operations to implement. You can then do impulse, step, and sine tests on it just like you can on an ordinary FIR. This set of multiple-choice questions – MCQ on data mining includes collections of MCQ questions on fundamentals of data mining techniques. Q8. Equal to c. Greater than d. None of the above. , 52, No. 38) Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. It includes MCQ questions on object-oriented and reuse models of software development strategies, object-oriented model, Rational Unified Process Model (RUP) , Commercial off-the Self Model (COTS) and Re-engineering Model. decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated filter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing – p.2/25. {\displaystyle {\tfrac {0.5}{M}}} A system component that performs decimation is called a decimator. It includes objective questions on the application of data mining, data mining functionality, the strategic value of data mining, and the data mining methodologies. Q9. Dear Readers, Welcome to Digital Signal Processing multiple choice questions and answers with explanation. For example, to decimate by a factor of 15, you could decimate by 5, then decimate by 3. Therefore, the larger the decimation factor is, the larger the savings, percentage-wise. Sliusar I.I., Slyusar V.I., Voloshko S.V., Smolyar V.G. –––––––––– is the term most widely used to denote the elements of a digital image. A Reduced. a. A simple way to think of the amount of computation required to implement a FIR decimator is that it is equal to the computation required for a non-decimating N-tap filter operating at the output rate. The purpose of the anti-aliasing filter is to ensure that the reduced periodicity does not create overlap. Throughout this FAQ, though, we’ll just use the term “decimation” loosely, sometimes to mean “downsampling”. C. GRANT. You can use a step response test. D Pick-down node. b) At the time of. Iowegian’s ScopeFIR comes with a free set of multirate algorithms, including FIR decimation functions in C. Just download and install the ScopeFIR distribution file. cycles per intermediate sample, is the lower frequency. SQL MCQ Questions and answers. Less than b. Discrete time Fourier Transform (DFFT) of an aperiodic signal is continuous function of Ω and is periodic with period 2π. In the case M=2, h[•] can be designed as a half-band filter, where almost half of the coefficients are zero and need not be included in the dot products. (This just boils down to applying the Nyquist criteria to the input signal, relative to the new sampling rate.). In SQL, which of the following is not a data definition language commands? Figure 10-7. Shift the delay line by M places to make room for the inputs of the next decimation. link brightness_4 code. - Geneva, Switzerland: CERN (2008). Septic Tank Requirements,
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D, we have interpolation, and when D > M, we have decimation. Step 2 alone allows high-frequency signal components to be misinterpreted by subsequent users of the data, which is a form of distortion called aliasing. What will be the output of the following code? A 3-V 230-MHz CMOS Decimation Subsampler.// IEEE transactions on circuits and systems— Vol. For the M > L case, the anti-aliasing filter cutoff, University. - P. 258. If you wish to reduce the sampling rate by a factor of three to 10 kHz, you must ensure that you have no components greater than 5 kHz, which is the Nyquist frequency for the reduced rate. It also includes the collection of objective types questions on C Arithmetic Instruction, Array on C and pointers in C. 1. Decimation in Time algorithm (DIT). Filter LPFM/D must sufficiently attenuate the interpolation spectral images so they don't contaminate our desired signal beyond acceptable limits after decimation. Science and Technology (PIC S&T’2016)”. so that is the maximum cutoff frequency of an ideal anti-aliasing filter.[A]. ANSWER: (c) Greater than. Before b. The cost of the digital processors is cheaper because - Published on 27 Nov 15. a. The general syntax for declaring an enumeration in C# is. 38) To change the sampling rate for better efficiency in two or multiple stages, The decimation and interpolation factors must be _____unity. Comments. Test Set - 1 - Digital Signal Processing - This test comprises 40 questions. View Answer Answer: Reduced 9 In tapped delay line filter, the tapped line is also known as _____ A Pick-off node. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. MCQ on Memory allocation and compilation process. ), A signal can be downsampled (without doing any filtering) whenever it is “oversampled”, that is, when a sampling rate was used that was greater than the Nyquist criteria required. In practice the cutoff frequency is placed far enough below the theoretical cutoff that the filter's skirt is contained below the theoretical cutoff. Decimation involves throwing away samples, so you can only decimate by integer factors; you cannot decimate by fractional factors. Option A: Equal Option B: Less Option C: Greater Option D: Zero Q22. Saska Lindfors, Aarno Pärssinen, Kari A. I. Halonen. 2020/2021. The passband ripple is whatever your application can tolerate. If the interpolation factor is I = 256, the A/D converter output can be obtained by averaging successive non-overlapping blocks of 128 bits. You get aliasing–just as with other cases of violating the Nyquist criteria. Using two or three stages is usually optimal or near-optimal. [6][c] It is sometimes used in derivations of the polyphase method. For IIR filters, you still have to do part or all of the filter calculation for each input, even when the corresponding output won’t be used. B. REVOKE. 10. When T has units of seconds, T Processor allows time sharing among a number of signals. Replacing T with MT in the formulas above gives the DTFT of the decimated sequence, x[nM]: The periodic summation has been reduced in amplitude and periodicity by a factor of M. An example of both these distributions is depicted in the two traces of Fig 1. 1. Organising Class 12 MCQs Questions with Answers. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction (filtering) and sample-rate reduction. This is because both amount of data (per second) and the length of the filter increase by two, so convolution goes up by four. M.H. This set of MCQ on C programming language includes the collection of MCQ questions on fundamental of C programming language. Abdul Kalam Technical University . The most immediate reason to decimate is simply to reduce the sampling rate at the output of one system so a system operating at a lower sampling rate can input the signal. If the interpolation functions $ f _ {n} ( z) $ are represented by the partial sums of some series of functions, the series is sometimes called an interpolation series. b. (Note that there will always. The passband lower frequency is zero; the passband upper frequency is whatever information bandwidth you want to preserve after decimating. Question 1. Course. 0.5 Mcq - mcq. Devendra Pratap. M = 3. It includes MCQ on declaring an enumeration in C#, keywords, static polymorphism and Operator overloading in C#, preprocessor directives in C#, and Conditional directives used in C#. MCQ 15.3 If an attribute has more than two classes, it is said to be: (a) Mainfold classification (b) Trichotomy (c) Dichotomous (d) All of the above MCQ 15.4 The χ2-test should not be used if any expected frequency is: (a) Less than 10 (b) Less than 5 (c) Equal to 5 (d) More than 5 MCQ 15.5 The total of all frequencies n is of order: If you put in a sine whose frequency is within the decimator’s passband, the output should be distortion-free (once the filter reaches steady-state), and the frequency of the output should be the same as the frequency of the input, in terms of absolute Hz. A) enum {enum list}; B) enum {enum list}; C) enum {enum list}; D) None of the above. The broad plans are made in achieving the goals. Digital signal processing (REC-503) Uploaded by. The hardware is cheaper. – Kharkiv. It is usually symbolized by “M”, so input rate / output rate=M. d. Less power consumption . a. The block diagram notation of the decimation process is depicted in Figure 9.1. Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers can employ during the system design process. Share. Notice that for the above esti-mate we exploit the fact the most atomic operations are independent from each other and the exact or-der of the decimation steps matters only for direct neighbors. This set of MCQ questions on software development strategies includes multiple-choice questions on fundamentals of software development strategies in software engineering. There isn’t a simple answer to this one: the answer varies depending on many things, so if you really want to find the optimum, you have to evaluate the resource requirements of each possibility. 0.5 However, here are a couple of rules of thumb which may help narrow down the choices: The multirate book references give additional, more specific guidance. On-going process: Strategic management is a on-going process which is in existence through out the life of organization. Dr. A.P.J. 3. Shaping broad plans: First, it is an on-going process in which broad plans are firstly formulated than implementing and finally. When implemented that way, it is called a polyphase filter. Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. Data Address b. Instruction Address c. Both a and b d. In most cases, though, you’ll end up lowpass-filtering your signal prior to downsampling, in order to enforce the Nyquist criteria at the post-decimation rate. The fact that only the outputs which will be used have to be calculated explains why decimating filters are almost always implemented using FIR filters! These objective type Digital Signal Processing questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. d) All of the above . a) True b) False View Answer. [e][f] In Figure 9.2 below, it illustrates the concept of 3-fold decimation i.e. Then the discrete-time Fourier transform (DTFT) is a Fourier series representation of a periodic summation of X(f):[d]. The down sampling process is called decimation. For example, if compact disc audio at 44,100 samples/second is decimated by a factor of 5/4, the resulting sample rate is 35,280. The following list of topics deals with Multiple choice question (MCQ) of different concepts of Processes. You still have to store every input sample in the FIR’s delay line, so the memory requirement is the same size as for a non-decimated FIR having the same number of taps. Please sign in or register to post comments. Therefore, both operations can be accomplished by a single filter with the lower of the two cutoff frequencies. To implement the downsampling part (by a downsampling factor of “M”) simply keep every Mth sample, and throw away the M-1 samples in between. In the case of FIR filters, any output is a function only of the past inputs (because there is no feedback). 6. (Depending on the filter topology used, certain feed-forward parts of the calculation can be omitted.),. Decimation is a process in which the sampling rate is _____ a) enhanced. f x[•] represents the input sequence being downsampled. Step size varies according to the values … where the h[•] sequence is the impulse response, and K is its length. D. UPDATE. A. RENAME. 2. The dot product is the sum of the dot products of each subsequence with the corresponding samples of the x[•] sequence. For example, when decimating by a factor of 60 in three stages, decimate by 5, then by 4, then by 3. Almost anything you do to/with the signal can be done with fewer operations at a lower sample rate, and the workload is almost always reduced by more than a factor of M. For example, if you double the sample rate, an equivalent filter will require four times as many operations to implement. You can then do impulse, step, and sine tests on it just like you can on an ordinary FIR. This set of multiple-choice questions – MCQ on data mining includes collections of MCQ questions on fundamentals of data mining techniques. Q8. Equal to c. Greater than d. None of the above. , 52, No. 38) Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. It includes MCQ questions on object-oriented and reuse models of software development strategies, object-oriented model, Rational Unified Process Model (RUP) , Commercial off-the Self Model (COTS) and Re-engineering Model. decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated filter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing – p.2/25. {\displaystyle {\tfrac {0.5}{M}}} A system component that performs decimation is called a decimator. It includes objective questions on the application of data mining, data mining functionality, the strategic value of data mining, and the data mining methodologies. Q9. Dear Readers, Welcome to Digital Signal Processing multiple choice questions and answers with explanation. For example, to decimate by a factor of 15, you could decimate by 5, then decimate by 3. Therefore, the larger the decimation factor is, the larger the savings, percentage-wise. Sliusar I.I., Slyusar V.I., Voloshko S.V., Smolyar V.G. –––––––––– is the term most widely used to denote the elements of a digital image. A Reduced. a. A simple way to think of the amount of computation required to implement a FIR decimator is that it is equal to the computation required for a non-decimating N-tap filter operating at the output rate. The purpose of the anti-aliasing filter is to ensure that the reduced periodicity does not create overlap. Throughout this FAQ, though, we’ll just use the term “decimation” loosely, sometimes to mean “downsampling”. C. GRANT. You can use a step response test. D Pick-down node. b) At the time of. Iowegian’s ScopeFIR comes with a free set of multirate algorithms, including FIR decimation functions in C. Just download and install the ScopeFIR distribution file. cycles per intermediate sample, is the lower frequency. SQL MCQ Questions and answers. Less than b. Discrete time Fourier Transform (DFFT) of an aperiodic signal is continuous function of Ω and is periodic with period 2π. In the case M=2, h[•] can be designed as a half-band filter, where almost half of the coefficients are zero and need not be included in the dot products. (This just boils down to applying the Nyquist criteria to the input signal, relative to the new sampling rate.). In SQL, which of the following is not a data definition language commands? Figure 10-7. Shift the delay line by M places to make room for the inputs of the next decimation. link brightness_4 code. - Geneva, Switzerland: CERN (2008). Septic Tank Requirements,
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decimation is the process of mcq
Posted By: February 11, 2021
Specially developed for the Electronic Engineering freshers and … In practice, this usually implies lowpass-filtering a signal, then throwing away some of its samples. Realizable low-pass filters have a "skirt", where the response diminishes from near one to near zero. c) reduced. A process for obtaining a sequence of interpolation functions $ \{ f _ {n} ( z) \} $ for an indefinitely-growing number $ n $ of interpolation conditions. B In a general purpose processor, after computing y[n], the easiest way to compute y[n+1] is to advance the starting index in the x[•] array by M, and recompute the dot product. atomic decimation step is part of the optimal dec-imation sequence or not can be based on a small subset of candidates. advertisement. MCQ Questions for Class 12 Business Studies with Answers were prepared based on the latest exam pattern. mcq. Let X(f) be the Fourier transform of any function, x(t), whose samples at some interval, T, equal the x[n] sequence. The stopband attenuation is set according to whatever aliasing your application can stand. The process in Figure 10-7(b) is normally called a sample rate converter because if M > D, we have interpolation, and when D > M, we have decimation. Step 2 alone allows high-frequency signal components to be misinterpreted by subsequent users of the data, which is a form of distortion called aliasing. What will be the output of the following code? A 3-V 230-MHz CMOS Decimation Subsampler.// IEEE transactions on circuits and systems— Vol. For the M > L case, the anti-aliasing filter cutoff, University. - P. 258. If you wish to reduce the sampling rate by a factor of three to 10 kHz, you must ensure that you have no components greater than 5 kHz, which is the Nyquist frequency for the reduced rate. It also includes the collection of objective types questions on C Arithmetic Instruction, Array on C and pointers in C. 1. Decimation in Time algorithm (DIT). Filter LPFM/D must sufficiently attenuate the interpolation spectral images so they don't contaminate our desired signal beyond acceptable limits after decimation. Science and Technology (PIC S&T’2016)”. so that is the maximum cutoff frequency of an ideal anti-aliasing filter.[A]. ANSWER: (c) Greater than. Before b. The cost of the digital processors is cheaper because - Published on 27 Nov 15. a. The general syntax for declaring an enumeration in C# is. 38) To change the sampling rate for better efficiency in two or multiple stages, The decimation and interpolation factors must be _____unity. Comments. Test Set - 1 - Digital Signal Processing - This test comprises 40 questions. View Answer Answer: Reduced 9 In tapped delay line filter, the tapped line is also known as _____ A Pick-off node. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. MCQ on Memory allocation and compilation process. ), A signal can be downsampled (without doing any filtering) whenever it is “oversampled”, that is, when a sampling rate was used that was greater than the Nyquist criteria required. In practice the cutoff frequency is placed far enough below the theoretical cutoff that the filter's skirt is contained below the theoretical cutoff. Decimation involves throwing away samples, so you can only decimate by integer factors; you cannot decimate by fractional factors. Option A: Equal Option B: Less Option C: Greater Option D: Zero Q22. Saska Lindfors, Aarno Pärssinen, Kari A. I. Halonen. 2020/2021. The passband ripple is whatever your application can tolerate. If the interpolation factor is I = 256, the A/D converter output can be obtained by averaging successive non-overlapping blocks of 128 bits. You get aliasing–just as with other cases of violating the Nyquist criteria. Using two or three stages is usually optimal or near-optimal. [6][c] It is sometimes used in derivations of the polyphase method. For IIR filters, you still have to do part or all of the filter calculation for each input, even when the corresponding output won’t be used. B. REVOKE. 10. When T has units of seconds, T Processor allows time sharing among a number of signals. Replacing T with MT in the formulas above gives the DTFT of the decimated sequence, x[nM]: The periodic summation has been reduced in amplitude and periodicity by a factor of M. An example of both these distributions is depicted in the two traces of Fig 1. 1. Organising Class 12 MCQs Questions with Answers. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction (filtering) and sample-rate reduction. This is because both amount of data (per second) and the length of the filter increase by two, so convolution goes up by four. M.H. This set of MCQ on C programming language includes the collection of MCQ questions on fundamental of C programming language. Abdul Kalam Technical University . The most immediate reason to decimate is simply to reduce the sampling rate at the output of one system so a system operating at a lower sampling rate can input the signal. If the interpolation functions $ f _ {n} ( z) $ are represented by the partial sums of some series of functions, the series is sometimes called an interpolation series. b. (Note that there will always. The passband lower frequency is zero; the passband upper frequency is whatever information bandwidth you want to preserve after decimating. Question 1. Course. 0.5 Mcq - mcq. Devendra Pratap. M = 3. It includes MCQ on declaring an enumeration in C#, keywords, static polymorphism and Operator overloading in C#, preprocessor directives in C#, and Conditional directives used in C#. MCQ 15.3 If an attribute has more than two classes, it is said to be: (a) Mainfold classification (b) Trichotomy (c) Dichotomous (d) All of the above MCQ 15.4 The χ2-test should not be used if any expected frequency is: (a) Less than 10 (b) Less than 5 (c) Equal to 5 (d) More than 5 MCQ 15.5 The total of all frequencies n is of order: If you put in a sine whose frequency is within the decimator’s passband, the output should be distortion-free (once the filter reaches steady-state), and the frequency of the output should be the same as the frequency of the input, in terms of absolute Hz. A) enum {enum list}; B) enum {enum list}; C) enum {enum list}; D) None of the above. The broad plans are made in achieving the goals. Digital signal processing (REC-503) Uploaded by. The hardware is cheaper. – Kharkiv. It is usually symbolized by “M”, so input rate / output rate=M. d. Less power consumption . a. The block diagram notation of the decimation process is depicted in Figure 9.1. Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers can employ during the system design process. Share. Notice that for the above esti-mate we exploit the fact the most atomic operations are independent from each other and the exact or-der of the decimation steps matters only for direct neighbors. This set of MCQ questions on software development strategies includes multiple-choice questions on fundamentals of software development strategies in software engineering. There isn’t a simple answer to this one: the answer varies depending on many things, so if you really want to find the optimum, you have to evaluate the resource requirements of each possibility. 0.5 However, here are a couple of rules of thumb which may help narrow down the choices: The multirate book references give additional, more specific guidance. On-going process: Strategic management is a on-going process which is in existence through out the life of organization. Dr. A.P.J. 3. Shaping broad plans: First, it is an on-going process in which broad plans are firstly formulated than implementing and finally. When implemented that way, it is called a polyphase filter. Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. Data Address b. Instruction Address c. Both a and b d. In most cases, though, you’ll end up lowpass-filtering your signal prior to downsampling, in order to enforce the Nyquist criteria at the post-decimation rate. The fact that only the outputs which will be used have to be calculated explains why decimating filters are almost always implemented using FIR filters! These objective type Digital Signal Processing questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. d) All of the above . a) True b) False View Answer. [e][f] In Figure 9.2 below, it illustrates the concept of 3-fold decimation i.e. Then the discrete-time Fourier transform (DTFT) is a Fourier series representation of a periodic summation of X(f):[d]. The down sampling process is called decimation. For example, if compact disc audio at 44,100 samples/second is decimated by a factor of 5/4, the resulting sample rate is 35,280. The following list of topics deals with Multiple choice question (MCQ) of different concepts of Processes. You still have to store every input sample in the FIR’s delay line, so the memory requirement is the same size as for a non-decimated FIR having the same number of taps. Please sign in or register to post comments. Therefore, both operations can be accomplished by a single filter with the lower of the two cutoff frequencies. To implement the downsampling part (by a downsampling factor of “M”) simply keep every Mth sample, and throw away the M-1 samples in between. In the case of FIR filters, any output is a function only of the past inputs (because there is no feedback). 6. (Depending on the filter topology used, certain feed-forward parts of the calculation can be omitted.),. Decimation is a process in which the sampling rate is _____ a) enhanced. f x[•] represents the input sequence being downsampled. Step size varies according to the values … where the h[•] sequence is the impulse response, and K is its length. D. UPDATE. A. RENAME. 2. The dot product is the sum of the dot products of each subsequence with the corresponding samples of the x[•] sequence. For example, when decimating by a factor of 60 in three stages, decimate by 5, then by 4, then by 3. Almost anything you do to/with the signal can be done with fewer operations at a lower sample rate, and the workload is almost always reduced by more than a factor of M. For example, if you double the sample rate, an equivalent filter will require four times as many operations to implement. You can then do impulse, step, and sine tests on it just like you can on an ordinary FIR. This set of multiple-choice questions – MCQ on data mining includes collections of MCQ questions on fundamentals of data mining techniques. Q8. Equal to c. Greater than d. None of the above. , 52, No. 38) Anti-imaging filter with cut-off frequency ω c = π/ I is specifically used _____ upsampling process for the removal of unwanted images. It includes MCQ questions on object-oriented and reuse models of software development strategies, object-oriented model, Rational Unified Process Model (RUP) , Commercial off-the Self Model (COTS) and Re-engineering Model. decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated filter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing – p.2/25. {\displaystyle {\tfrac {0.5}{M}}} A system component that performs decimation is called a decimator. It includes objective questions on the application of data mining, data mining functionality, the strategic value of data mining, and the data mining methodologies. Q9. Dear Readers, Welcome to Digital Signal Processing multiple choice questions and answers with explanation. For example, to decimate by a factor of 15, you could decimate by 5, then decimate by 3. Therefore, the larger the decimation factor is, the larger the savings, percentage-wise. Sliusar I.I., Slyusar V.I., Voloshko S.V., Smolyar V.G. –––––––––– is the term most widely used to denote the elements of a digital image. A Reduced. a. A simple way to think of the amount of computation required to implement a FIR decimator is that it is equal to the computation required for a non-decimating N-tap filter operating at the output rate. The purpose of the anti-aliasing filter is to ensure that the reduced periodicity does not create overlap. Throughout this FAQ, though, we’ll just use the term “decimation” loosely, sometimes to mean “downsampling”. C. GRANT. You can use a step response test. D Pick-down node. b) At the time of. Iowegian’s ScopeFIR comes with a free set of multirate algorithms, including FIR decimation functions in C. Just download and install the ScopeFIR distribution file. cycles per intermediate sample, is the lower frequency. SQL MCQ Questions and answers. Less than b. Discrete time Fourier Transform (DFFT) of an aperiodic signal is continuous function of Ω and is periodic with period 2π. In the case M=2, h[•] can be designed as a half-band filter, where almost half of the coefficients are zero and need not be included in the dot products. (This just boils down to applying the Nyquist criteria to the input signal, relative to the new sampling rate.). In SQL, which of the following is not a data definition language commands? Figure 10-7. Shift the delay line by M places to make room for the inputs of the next decimation. link brightness_4 code. - Geneva, Switzerland: CERN (2008).
