## Sampling Rate Conversion MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Sampling Rate Conversion”. 1. The Nth root of unity WN is given as _____________a) ej2πNb) e-j2πNc) e-j2π/Nd) ej2π/N 2. Which of the following is true?a) W∗N=1NWN−1b) WN−1=1NWN∗c) WN−1=WN∗d) None of the mentioned 3. What is the DFT of the four point sequence x(n)={0,1,2,3}?a) {6,-2+2j-2,-2-2j}b) {6,-2-2j,2,-2+2j}c) {6,-2-2j,-2,-2+2j}d) […]

## Factor I Interpolation MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Factor I Interpolation”. 1. Which of the following is true about the interpolated signal whose spectrum is V(ωy)?a) (I-1)-fold non-periodicb) (I-1)-fold periodic repetitionc) I-fold non periodicd) I-fold periodic repetition 2. What is the relationship between ωx and ωy?a) ωy= ωx.Ib) ωy= ωx/Ic) […]

## Frequency Transformations MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Frequency Transformations”. 1. Which of the following is the backward design equation for a low pass-to-low pass transformation?a) $$\Omega_S=\frac{\Omega_S}{\Omega_u}$$b) $$\Omega_S=\frac{\Omega_u}{\Omega’_S}$$c) $$\Omega’_S=\frac{\Omega_S}{\Omega_u}$$d) $$\Omega_S=\frac{\Omega’_S}{\Omega_u}$$ 2. If A=$$\frac{Ω_1 (Ω_u-Ω_l)}{-Ω_1^2+Ω_u Ω_l}$$ and B=$$\frac{Ω_2 (Ω_u-Ω_l)}{Ω_2^2-Ω_u Ω_l}$$, then which of the following is the backward design equation […]

## Analog Filters Classification MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Analog Filters Classification”. 1. What is the stop band gain of a low pass filter with δS as the pass band attenuation?a) -20log(1- δS)b) -20log(δS)c) 20log(δS)d) 20log(1- δS) 2. What is the region after the stop band frequency in the magnitude frequency […]

## IIR Frequency Domain Filter Analysis MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “IIR Frequency Domain Filter Analysis”. 1. If the error in delay is defined as Tg(ωk) – Tg(ω0) – Td(ωkk), then what is Tg(ω0)?a) Filter delay at nominal frequency in stop bandb) Filter delay at nominal frequency in transition bandc) Filter delay […]

## FIR Least Squares Filters MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “FIR Least Squares Filters”. 1. What should be the desired response for an optimum wiener filter to be an approximate inverse filter?a) u(n)b) δ(n)c) u(-n)d) none of the mentioned 2. What should be the length of the truncated filter?a) Mb) M-1c) […]

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Pade Approximation Method”. 1. For how many values of the impulse response, a perfect match is present between h(n) and hd(n)?a) Lb) M+N+1c) 2L-M-N-1d) All of the mentioned 2. Which of the following filters will have an impulse response as shown […]

## Least Squares Design Methods MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Least Squares Design Methods”. 1. By integrating the error equation with respect to the parameters {ak}, we obtain set of linear equations.a) Trueb) False 2. What should be the value of y(n) at n=0?a) 0b) -1c) 1d) None of the mentioned […]

## Analog Domain Frequency Transformations MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Analog Domain Frequency Transformations”. 1. Which of the following is the backward design equation for a low pass-to-low pass transformation?a) ΩS=ΩSΩub) ΩS=ΩuΩ′Sc) Ω’S=ΩSΩud) ΩS=Ω′SΩu 2. If A=−Ω21+ΩuΩlΩ1(Ωu−Ωl) and B=Ω22−ΩuΩlΩ2(Ωu−Ωl), then which of the following is the backward design equation for a low […]

## Digital Domain Frequency Transformations

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Digital Filter Characteristics”. 1. The frequency transformation in the digital domain involves replacing the variable z-1 with a rational function g(z-1).a) Trueb) False 2. The mapping z-1 → g(z-1) must map inside the unit circle in the z-plane into __________a) Outside the unit […]