Repeat Problem 6. 10 for N = 21 and N = 41. Plot and compare the frequency response of the…

Repeat Problem 6. 10 for N = 21 and N = 41. Plot and compare the frequency response of the discrete-time filters with those in Problem 6. 10. Describe the major differences.

Problem 6. 10

Write a MATLAB program that generates the sampled version of the transmit filter impulse response BT ( t) given by ( 6 .5 .9) for an arbitrary value of the roll off factor ex. Evaluate and plot BT(n)  

Also, evaluate and plot the magnitude of the frequency response characteristic for this filter. (Use a 4N-point DFf of BT(n) by padding BT(n) with 3N zeros.)

 

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