Matlab code for finding linear convolution using circular convolution?

Answer 1

To find linear convolution using circular convolution in MATLAB, you can use the cconv function, which computes the circular convolution of two sequences. To obtain the linear convolution, you need to pad one of the sequences with zeros to the length of the sum of the lengths of both sequences minus one. Here's a simple example:

x = [1, 2, 3]; % First input sequence
h = [4, 5];    % Second input sequence
N = length(x) + length(h) - 1; % Length for linear convolution
y = cconv(x, [h, zeros(1, N-length(h))], N); % Circular convolution

This will give you the linear convolution result of x and h.