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) […]

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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) […]

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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 […]

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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 […]

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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 […]

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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 […]

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