Q7.1 Â Â The normalized passband edge angular frequencyWp is - 0.2
  The normalized stopband edge angular frequency Ws is -0.4
  The desired passband ripple Rp is - 0.5 dB
  The desired stopband ripple Rs is - 40 dB
In Matlab:
Q7.X1 Design a fixed window FIR filter satisfying thespecifications in Q7.1. Plot the magnitude and phase responses.Also include magnified plots of passband and stopband showing howwell the filter satisfies the design specifications.