how can i Write a MATLAB program that plots the magnitudes of the taps of thediscrete-time baseband channel

the question is basically how can i write a MATLAB program that plots the magnitudes of the taps of thediscrete-time baseband channel at m = 1 second for ℓ ∈ [−40, 40]. Your code mustgenerate a separate plot for each given bandwidth, i.e. W = 10 kHz, 100 kHz, 1 MHz,and 3 MHz

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For the reflecting wall and the moving antenna setup shown in Figure 1, the distance betweenthe sending antenna and the wall is d = 2 km and the receiver, initially located at 1.5 km fromthe transmitter, starts moving away from the transmitter with a velocity of 60 km/h at t = 0.The carrier frequency is given as fc = 900 MHz.