FFT, padding, IFFT and plot in time domain

2015 12 31
0 个回答
8 次查看（30 天）

0 个投票

Hi, I performed an FFT with some zero padding and would like to transform it back to time domain. When I plot the signal it looks wrong. Is it because of the padding used in the FFT? How can I make it right? here is my code for doing the IFFT:
NFFT=4301;
AvIFFT = ifft(FFTavg.dat,NFFT);
plot(real(AvIFFT))
And I get this plot:
Any help would be greatly appreciated! Thank you!

请先登录，再回答此问题。

回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Fourier Analysis and Filtering 的更多信息

产品

标签

Community Treasure Hunt

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

Start Hunting!

Translated by