Problem 3.1 Find 8x8 DFT matrix using dftmtx and perform DFT of the following se- quences...

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Problem 3.1 Find 8x8 DFT matrix using dftmtx and perform DFT of the following se- quences using (1) matrix multiplication and (2) fft command. Do you get the same result? (a) x1= [1:8]; (b) x2=ones (1,8); (c) x3= [1 1 1 0 0 0 0 0]; Problem 3.2 Write your own function mydt fmtx.m (without using dftmtx command) which will behave the same as dftmtx command. This function should take the signal length as the input. Let D-mydftmtx (16) and find D*D' and D' *D. Comment. Problem 3.1 Find 8x8 DFT matrix using dftmtx and perform DFT of the following se- quences using (1) matrix multiplication and (2) fft command. Do you get the same result? (a) x1= [1:8]; (b) x2=ones (1,8); (c) x3= [1 1 1 0 0 0 0 0]; Problem 3.2 Write your own function mydt fmtx.m (without using dftmtx command) which will behave the same as dftmtx command. This function should take the signal length as the input. Let D-mydftmtx (16) and find D*D' and D' *D. Comment.

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Answer 31 a clc clear all close all NinputEnter the Npoint sequence length WdftmtxN x118 X1Wx1 Xfftfftx1 fprintfUsing DFT Method dispX1 fprintf Using Matlab function FFT dispXfft Output Enter the Npoi... View the full answer