Design a lowpass/highpass FIR filter that satisfy the given specifications using window based design...

Question

Design a lowpass/highpass FIR filter that satisfy the given specifications using window based design method:?s = 0.3p, As = 50dB ,?p=0.5p, and Ap = 0.001dB.
a) Use an appropriate fixed window to obtain a minimum order linear-phase filter and determine the coefficients of the impulse response of the filter and plot it.
b) What will be the order of the filter if it uses Kaiser window?

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David · Accepted Answer

High pass Filter Design 
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Given that, specifications are
For the given specifications ripples at stage 1 will be,  
                     
      
Now for the above criteria minimum even order will be, 74,

Design a lowpass/highpass FIR filter that satisfy the given specifications using window based design method:?s = 0.3p, As = 50dB ,?p=0.5p, and Ap = 0.001dB. a) Use an appropriate fixed window to...

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