How to fft and filter some data and do ifft

조회 수: 12 (최근 30일)
Yogesh Babu
Yogesh Babu 2014년 7월 15일
답변: Hsu Ping 2017년 1월 12일
Hello, I have two set of data 1.time 2.amplitude of the time domain.. I would like to do fft with respect to time and amplitude and remove some frequency and then do ifft
1.fft (time,amplitude) 2.remove some frequency 3.ifft after removing the signal. please let me know how to do....
Thanks in advance...

답변 (3개)

Joseph Cheng
Joseph Cheng 2014년 7월 15일
basically look up the fft documentation. They have examples on how to do the FFT and iFFT. If you need to remove some frequency just zero out the data at the frequency you desire.
  댓글 수: 1
Yogesh Babu
Yogesh Babu 2014년 7월 15일
Hello, Thanks for your reply!!
I read that the documentation but it is not so clear to this one...

댓글을 달려면 로그인하십시오.


Pavan Kumar Moturu
Pavan Kumar Moturu 2015년 3월 16일
Hi Yogesh,
Did you find any solution for the task?
Regards Pavan Moturu

Hsu Ping
Hsu Ping 2017년 1월 12일
Hello,
I would like to know how to do fft/remove some frequency/ifft? Could you provide any example?
1.fft (time,amplitude) 2.remove some frequency 3.ifft after removing the signal. please let me know how to do....
Thanks in advance...

카테고리

Help CenterFile Exchange에서 Fourier Analysis and Filtering에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by