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DSP Code Sharing > Circular convolution
Circular convolution
Language: Scilab
Processor: Not Relevant
Submitted by Senthilkumar R on Feb 8 2011
Licensed under a Creative Commons Attribution 3.0 Unported License
Circular convolution
Circular convolution using DFT in scilab
//Performing Circular COnvolution
//Using DFT
clear all;
clc;
close;
L = 4; //Length of the Sequence
N = 4; // N -point DFT
x1 = [2,1,2,1];
x2 = [1,2,3,4];
//Computing DFT
X1 = dft(x1,-1)
X2 = dft(x2,-1)
//Multiplication of 2 DFTs
X3 = X1.*X2
//Circular Convolution Result
x3 =abs(dft(X3,1))
disp(x3,'x3=')
//Using DFT
clear all;
clc;
close;
L = 4; //Length of the Sequence
N = 4; // N -point DFT
x1 = [2,1,2,1];
x2 = [1,2,3,4];
//Computing DFT
X1 = dft(x1,-1)
X2 = dft(x2,-1)
//Multiplication of 2 DFTs
X3 = X1.*X2
//Circular Convolution Result
x3 =abs(dft(X3,1))
disp(x3,'x3=')
posted by Senthilkumar R Comments
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