10.1 Design an FIR linear-phase, digital filter approximating the ideal frequency response Π 1. for w 6 Ha(w)= π 0, for < 6 (a) Determine the coefficients of a 25-tap filter based on the window method with a rectangular window. 736 Chapter 10 Design of Digital Filters (b) Determine and plot the magnitude and phase response of the filter. (c) Repeat parts (a) and (b) using the Hamming window. (d) Repeat parts (a) and (b) using a Bartlett window. 10.2 Repeat Problem 10.1 for a bandstop filter having the ideal response IT 1, for w Ha(w) = 0, for 1, for 3263 6 IT << 3 Π 10.3 Redesign the filter of Problem 10.1 using the Hanning and Blackman windows. 10.4 Redesign the filter of Problem 10.2 using the Hanning and Blackman windows. 10.5 Determine the unit sample response {h(n)} of a linear-phase FIR filter of length M = 4 for which the frequency response at w = 0 and w=/2 is specified as H,(0) = 1, *() π 1 =