DTFT of unit impulse signal

how to generate dtft of unit impulse signal in matlab?

Answer 1

[Shubham Rawat]

Hi Issac,

You can implement the DTFT using the following code snippet,

function [X] = dtft(x,n,w)
    % Computes Discrete-time Fourier Transform
    % [X] = dtft(x,n,w)
    %   X = DTFT values computed at w frequencies
    %   x = finite duration sequence over n
    %   n = sample position vector
    %   w = frequency location vector
    X = exp(-1i*w'*n)  * x.';
    % X = x*exp(-j*n'*w);
end

Hope this Helps!