3) Impulse response of an FIR and LTI system with linear phase is given as: h(n)={-1, 1/2, -2, 1/2, -1}, п-0,1,2,3,4. a) Calculate the frequency response of the system using DFT. Write the magnitude...

Extracted text: 3) Impulse response of an FIR and LTI system with linear phase is given as: h(n)={-1, 1/2, -2, 1/2, -1}, п-0,1,2,3,4. a) Calculate the frequency response of the system using DFT. Write the magnitude response, phase response and the group delay of the system. b) Let h'(n)={-1, 1/2, -2, 1/2, -i, 0} signal be the periodic version of h(n) with period N=6. Find DFS coefficients of h'(n). Find and compare the computational loads of DFT and FFT algorithms. (Computational load for DFT is N²,and for FFT is Nlog:N.) c) The input signal x(n)={-1, 2} is applied to the system in (a). Find the 5 points circular convolution of x(n) and h(n) in time domain: c(n) =x(n) *s h(n) d) Now, calculate the output of the system, y(n), firstly with linear convolution: yı(n) =x(n) * h(n), then calculate the output with 6 points in time domain: y2(n) = x(n) *6 h(n). Compare the results.