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Design a linear-phase, bandpass FIR filter using the window-based approach to meet the following specifications: ws,L = 0.3T,ap.L = 0.45T,Wp u = 0.65T, Au-0.8T, mini- mum stopband at (i) Is there a unique window to meet the desired specifications? If not, choose the window with minimum transition width (ii) Plot the magnitude and phase response of the designed filter using MATLAB. (iii Using the MATLAB command firpm, design the same linear-phase bandpass FIR filter via the Parks-McClellan algorithm. Plot the magnitude and phase response of the resulting filter. The desired passband and stopband magnitudes are, respectively 1 and 0. You may assume equal weights in the passband and stopbands. (iv) In the Parks-McClellan design above, investigate the modification to the magnitude response by using a passband-to-stopband relative weight ratio of 0.1, instead of 1

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given that wsa) opa) we uims on window, Kaber windouo, becaue to atyfy mamimam Stop bano attenuatiom. as-745 = 50- 45 za-93 14.26 14-36 ana : The order of Hefcuer,Nz uy_ + 久

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