I tried to generate FFT for the data. but in the result I am getting two complex values. Attached are input time data and output fft data. Please help to interpret the same.
Use of FFT function in Matlab 2013 b
1 回表示 (過去 30 日間)
古いコメントを表示
Hello, I am trying to convert time domain data of pressure signal to frequency domain. I have data in excel file with each variable in separate columns. Both variable (time and pressure) were imported to Matlab as column vectors using import tool. But while using fft function (fft(pressure)) to generate frequency domain data, I get some random values. I've attached both mat file and excel output.
Am I doing this correctly ? If yes, how to interpret the fft data ?
If I want to get fft withing a specific frequency range and resolution, how to do ?
Best Regards Saumya
回答 (0 件)
参考
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
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!