Question 2
Marks : +2 | -2
Pass Ratio : 100%
What is the frequency response of a system with input h(n) and window length of M?
Explanation: The desired output of an FIR filter with an input h(n) and using a window of length M is given as
Question 3
Marks : +2 | -2
Pass Ratio : 100%
What is the relation between H(k+α) and h(n)?
Explanation: We know that
Question 5
Marks : +2 | -2
Pass Ratio : 100%
In the frequency sampling method for FIR filter design, we specify the desired frequency response Hd(ω) at a set of equally spaced frequencies.
Explanation: In the frequency sampling method, we specify the frequency response Hd(ω) at a set of equally spaced frequencies, namely ωk=\\(\\frac{2π}{M}(k+\\alpha)\\)
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is the correct expression for h(n) in terms of H(k+α)?
Explanation: We know that
Question 7
Marks : +2 | -2
Pass Ratio : 100%
In a practical implementation of the frequency sampling realization, quantization effects preclude a perfect cancellation of the poles and zeros.
Explanation: In the ideal situation, the zeros cancel the poles and, consequently, the actual zeros of the H(z) are determined by the selection of the frequency samples H(k+α). In a practical implementation of the frequency sampling realization, however, quantization effects preclude a perfect cancellation of the poles and zeros.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is introduced in the frequency sampling realization of the FIR filter?
Explanation: There is a potential problem for frequency sampling realization of the FIR linear phase filter. The frequency sampling realization of the FIR filter introduces poles and zeros at equally spaced points on the unit circle.