1. If we down-sample a signal x(n), then the resulting signal will be an aliased version of x(n). A. True B. False 2. What is the folding frequency for the aliased version of x(n) with sampling rate F? A. F/D B. F/4D C. F/2 D. F/2D 3. To what value should the bandwidth …
1. Which of the following is the first method proposed for the design of FIR filters? A. Chebyshev approximation B. Frequency sampling method C. Windowing technique D. None of the mentioned 2. The lack of precise control of cutoff frequencies is a disadvantage of which of the following designs? A. Window design B. Chebyshev …
1. Sampling rate conversion by the rational factor I/D is accomplished by what connection of interpolator and decimator? A. Parallel B. Cascade C. Convolution D. None of the mentioned 2. Which of the following has to be performed in sampling rate conversion by rational factor? A. Interpolation B. Decimation C. Either interpolation or decimation …
1. Sampling rate conversion by the rational factor I/D is accomplished by what connection of interpolator and decimator? A. Parallel B. Cascade C. Convolution D. None of the mentioned 2. Which of the following has to be performed in sampling rate conversion by rational factor? A. Interpolation B. Decimation C. Either interpolation or decimation …
1. Which of the following operation has to be performed to increase the sampling rate by an integer factor I? A. Interpolating I+1 new samples B. Interpolating I-1 new samples C. Extrapolating I+1 new samples D. Extrapolating I-1 new samples 2. In one of the interpolation processes, we can preserve the spectral shape of …
1. Which of the following operation has to be performed to increase the sampling rate by an integer factor I? A. Interpolating I+1 new samples B. Interpolating I-1 new samples C. Extrapolating I+1 new samples D. Extrapolating I-1 new samples 2. In one of the interpolation processes, we can preserve the spectral shape of …
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1. What is the passband edge frequency of an analog low pass normalized filter? A. 0 rad/sec B. 0.5 rad/sec C. 1 rad/sec D. 1.5 rad/sec 2. If H(s) is the transfer function of an analog low pass normalized filter and Ωu is the desired passband edge frequency of the new low pass filter, …
1. Which of the following is true in the case of Butterworth filters? A. Smooth passband B. Wide transition band C. Not so smooth stopband D. All of the mentioned 2. What is the magnitude frequency response of a Butterworth filter of order N and cutoff frequency ΩC? A. \(\frac{1}{\sqrt{1+(\frac{Ω}{Ω_C})^{2N}}}\) B. \(1+(\frac{Ω}{Ω_C})^{2N}\) C. \(\sqrt{1+(\frac{Ω}{Ω_C})^{2N}}\) …
1. What is the region between origin and the passband frequency in the magnitude frequency response of a low pass filter? A. Stopband B. Passband C. Transition band D. None of the mentioned 2. What is the region between stopband and the passband frequencies in the magnitude frequency response of a low pass filter? …
1. Filter parameter optimization technique is used for designing which of the following? A. FIR in time domain B. FIR in frequency domain C. IIR in time domain D. IIR in the frequency domain 2. In this type of design, the system function of the IIR filter is expressed in which form? A. Parallel …
