MATLAB Answers

How do I write a code for Fast Fourier Transform

2 ビュー (過去 30 日間)
Issara Laosuwan
Issara Laosuwan 2016 年 5 月 31 日
回答済み: Todd Leonhardt 2016 年 5 月 31 日
Hello! I try to replicate and understand Dr.Rich Radke's code about Fast Fourier Transform from https://www.youtube.com/watch?v=NbQY1x8H6QQ at 15:02 min.
function im = bf(m,n)
N = 256; [x,y] = meshgrid(0:(N-1),0:(N-1)); im = real(exp(-j*2*pi*(m*x/n+n*y/N))); if (m == 0) && (n == 0) im = round(im); end
Seem like some of the essential codes are missing because when I computed, it return with an error:
>> bf Not enough input arguments.
Error in bf (line 4) im = real(exp(-j*2*pi*(m*x/n+n*y/N)));
Please kindly recommend me!!! Thank you in advance!!!
Issara

採用された回答

Todd Leonhardt
Todd Leonhardt 2016 年 5 月 31 日
See this good documentation on how to use the built-in fft() function:

その他の回答 (0 件)

Community Treasure Hunt

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

Start Hunting!

Translated by