フィルターのクリア
フィルターのクリア

Fast Fourier Transform Question in Matlab

2 ビュー (過去 30 日間)
John
John 2013 年 3 月 14 日
I have a signal with 8192 samples with lots of intermittent 0s. I want to compute the FFT of this signal however I don't want to use all of these 0s.
How can I shorten the original signal to get rid of these 0s and compute a FFT that is equivalent to the original signal?

サインインしてこの質問に回答する。

回答 (1 件)

Azzi Abdelmalek
Azzi Abdelmalek 2013 年 3 月 14 日
You can use sparse function
y=rand(1,8192);
yout=sparse(y)
But to compute the fft you will need to use y, unless you use your own code

カテゴリ

Help Center および File Exchange で Fourier Analysis and Filtering についてさらに検索

タグ

Community Treasure Hunt

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

Start Hunting!

Translated by