Explain the basic blocks used in the digital signal processing system.
[3 marks]What is the significance of ROC in Z-tranforms? Explain by using suitable example.
[4 marks]Classify following systems as: (a) Static or Dynamic; (b) Linear or Nonlinear; (c) Shift Invariant or Shift Variant; (d) Casual or Non-casual; (e) Stable or Unstable.
[7 marks]y (n) = x(n) + nx(n+1)1 (ii) y (n) = cos[x(n)]2
[ marks]Define: (a) Time Invariant System (b) Static System (c) Casual System
[3 marks]Describe the relationship between Fourier Transform & Z-transform.
[4 marks]Consider a casual LTI system, whose system function is Where a is real.
[7 marks]For what range of values of a is the system stable. ii) Show that the system is an all pass system i.e., the magnitude of the frequency response is a constant. Also specify the value of the constant.
[ marks]Adifference equation describing a filter is given below: Draw direct form-Iand direct form-II structures.
[7 marks]What is Gibbs phenomenon?
[3 marks]List the properties of Butterworth low-pass filters.
[4 marks]Compare FIR and IIR filters in detail.
[7 marks]Explain Minimum Phase System in brief. Page 1 of
[2 marks]State formulas for Discrete Time Fourier Transform (DTFT) Z-transform of discrete time signal x(n). Prove relationship between Z-transform and DTFT.
[4 marks]State the properties of Z-transform and derive any three properties.
[7 marks]What is up sampling and down sampling? Give one application of that.
[3 marks]What do you mean by frequency wrapping?
[4 marks]Discuss 8-point Radix-2 Decimation-in-time FFT algorithm.
[7 marks]What is meant by quantization error? How to avoid it?
[3 marks]State and prove, the property “Differentiation in frequency domain” for Fourier Transform of discrete time signals.
[4 marks]Compute circular convolution of the given two sequences: x(n) = {1,0.5} and h(n) = {0.5,1}
[7 marks]What is bilinear transformation for filter design.
[3 marks]Compute DFT of the given sequence. x(n) = {0, 1, 2, 3}
[4 marks]Explain the following in context of DSP processor architecture: (a) MAC (b) Pipelining
[7 marks]Write a short critical note on Harward architecture of DSP processor.
[3 marks]Explain the following with reference to the multirate signal processing: Decimation, Interpolation.
[4 marks]What is windowing? Explain in detail the process of converting IIR system in to FIR system using rectangular window. Page 2 of
[2 marks]