Electronics & Communication Engineering - Digital Signal Processing

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25.

A discrete impulse function is applied to the inputs of four different filters.For each of the output sequences that follow, state whether the filter is nonrecursive.?                          
A. {1, 2, 3, 4, 5, 6, 0, 0, 0 ..... } B. {1, -1, 1, -1, 1, -1 ..... }
C. {1, 2, 4, 8, 16 ..... } D. {1, 0.5, 0.25, 0.125, ..... }



26.

A filter has the difference equation: y(nt-2T)+x(nT)+x(nT-T). What traditional filter type best describes this filter??                          
A. Integrator B. differentiator
C. subtractor D. multiplier



27.

The Linear Phase symmetric Impulse response having even number of samples cannot be used to design the following filter?                          
A. Lowpass B. Highpass
C. Bandpass D. Bandstop




28.

The following filter is always stable ?                          
A. Butterworth filter B. Chebyshev filter
C. I I R filter D. FIR filter



29.

Which of the filter can be realized in both recursive and non recursive structure??                          
A. Butterworth filter B. Chebyshev filter
C. I I R filter D. FIR filter



30.

Which filter is free of Limit cycle oscillations when implemented on a finite word length digital system?                          
A. Butterworth filter B. Chebyshev filter
C. I I R filter D. FIR filter



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