In the context of discrete-time sequences, the "indices vector" typically refers to the vector that specifies the time indices (or positions) corresponding to each element of the sequence. For example, for sequence “x[n]” that starts at index (n = 0), the indices vector “nx” would be [0, 1, 2, ..., N-1], where “N” is the length of the sequence.
In the code,
- nx: The indices vector for the sequence “x[n]”.
- nh: The indices vector for the sequence “h[n]”.
Here is an improved version MATLAB function that handles both causal and non-causal sequences while taking the indices vectors into account:
function [ny, y] = convolution(nx, x, nh, h)
% Calculate the start and end indices for the convolution result
start_index = nx(1) + nh(1);
end_index = nx(end) + nh(end);
% Create the indices vector for the output sequence
ny = start_index:end_index;
% Perform the convolution
y = conv(x, h);
end
Please find attached the documentation of functions used for reference:
I hope this will help in resolving the issue.
