initial commit / add all books

1 files changed, 21 insertions, 0 deletions

diff --git a/716/CH9/EX9.3/Solved_Ex9_3.sce b/716/CH9/EX9.3/Solved_Ex9_3.sce
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+//compute circular convolution of x1(n)={2 1 2 1} & x2(n)={1 2 3 4}

+clc;

+clear;

+n=0:1:3;//for four point DFT

+x1=[1 2 3 4];

+disp(x1,'Given signal=>    x1(n)=');

+X1=dft(x1,-1);

+disp(X1,'four point DFT of x(n)=>');

+disp(abs(X1),'magnitude of four point DFT x(n)=>');

+disp(atan(imag(X1),real(X1)),'phase of four point DFT x(n)=>');

+

+x2=[2 1 2 1];

+disp(x2,'Given signal=>    x1(n)=');

+X2=dft(x2,-1);

+disp(X2,'four point DFT of x(n)=>');

+disp(abs(X2),'magnitude of four point DFT x(n)=>');

+disp(atan(imag(X2),real(X2)),'phase of four point DFT x(n)=>');

+

+X3=X1.*X2;

+x3=dft(X3,1);

+disp(x3,'by circular convolution x3(n)=>');
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