Design lowpass IIR filter with the following specifications:
Filter order = 2, Butterworth type
Cut-off frequency=800 Hz
Sampling rate =8000 Hz
Design using the bilinear z-transform design method
Print the lowpass IIR filter coefficients and plot the frequency responses using MATLAB.
MATLAB>>freqz(bLP,aLP,512,8000);
axis([0 4000 -40 1]); % sampling rate=8000 Hz