Question: Consider the following first-order IIR filter. .4(1 z-1) H(z) = 1+ .2z-1 (a) Compute and sketch the magnitude response A(f). (b) What type of

Consider the following first-order IIR filter. .4(1 z-1) H(z) = 1+ .2z-1

Consider the following first-order IIR filter. .4(1 z-1) H(z) = 1+ .2z-1 (a) Compute and sketch the magnitude response A(f). (b) What type of filter is this (lowpass, highpass, bandpass, bandstop)? (c) Suppose F, = .4 fs. Find the passband ripple 8p. (d) Suppose F, = .2 fs. Find the stopband attenuation 8,.

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