How to calculate inverse fourier transform of a sinc wave?

1 次查看（过去 30 天）

Florea George 2019-1-8

评论： nanren888 2019-1-9

the sinc wave signal form is this X(ω)= 2*sinc(ω*T/pi);

nanren888 2019-1-9

Google

inverse fourier transform of a sinc

Numerically?

Sample it, that is generate samples at equally-spaced T values, for a given omega.

omega = 1.0

tMax = 100.0;

tt = linspace(-tMax,tMax,1024).';

s = 2*sinc(omega*tt/pi);

sif = ifft(s);

plot(abs(sif));

grid('on');

You might want to try for different tMax values

在 Help Center 和 File Exchange 中查找有关 Discrete Fourier and Cosine Transforms 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by