Question: Group Delay of the IIR Filter
a. Generate and plot the first 150 points of the impulse response of the IIR filter.
b. Compute and plot its frequency response magnitude and its group delay.
c. Plot the signals x1 and x2 and the air Fourier transforms. Use these plots and the plots of the magnitude and group delay from part (b) to estimate the output you will get from running each sequence through the IIR system.
d. Verify your estimate in part (c) by explicitly computing the outputs due to x1 and x2 using filter.