Digital Signal Processing Linear Filtering Approach Computation Dft Online Exam Quiz
Digital Signal Processing Linear Filtering Approach Computation Dft GK Quiz. Question and Answers related to Digital Signal Processing Linear Filtering Approach Computation Dft. MCQ (Multiple Choice Questions with answers about Digital Signal Processing Linear Filtering Approach Computation Dft
What is the transform that is suitable for evaluating the z-transform of a set of data on a variety of contours in the z-plane?
Options
A : Goertzel Algorithm
B : Fast Fourier transform
C : Chirp-z transform
D : None of the mentioned
How many complex multiplications are need to be performed to calculate chirp z-transform?(M=N+L-1)
Options
A : log2M
B : Mlog2M
C : (M-1)log2M
D : Mlog2(M-1)
How many multiplications are required to calculate X(k) by chirp-z transform if x(n) is of length N?
Options
A : N-1
B : N
C : N+1
D : None of the mentioned
If the contour on which the z-transform is evaluated is as shown below, then which of the given condition is true?
Options
A : R0>1
B : R0<1
C : R0=1
D : None of the mentioned
If the contour is a circle of radius r and the zk are N equally spaced points, then what is the value of zk?
Options
A : re-j2?kn/N
B : rej?kn/N
C : rej2?kn
D : rej2?kn/N
If the desired number of values of the DFT is less than log2N, a direct computation of the desired values is more efficient than FFT algorithm.
Options
A : True
B : False
C :
D :
If yk(n) is the convolution of the finite duration input sequence x(n) of length N, then what is the impulse response of the filter?
Options
A : WN-kn
B : WN-kn u(n)
C : WNkn u(n)
D : None of the mentioned
What is the expression to compute yk(n) recursively?
Options
A : yk(n)=WN-kyk(n+1)+x(n)
B : yk(n)=WN-kyk(n-1)+x(n)
C : yk(n)=WNkyk(n+1)+x(n)
D : None of the mentioned
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