FourierTransform.m

版本 1.0.0.0 (6.6 KB) 作者: Carlos Adrian Vargas Aguilera
Complex Fourier Transform of a real time series. From zero to Nyquist frequency.
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更新时间 2016/5/4

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[rC,iC,Fn] = FOURIERTRANSFORM(X,dT) gives the components of the complex Fourier transform, complex(rC,iC), of the real time series X taken at the sampling interval dT (optional) via FFT.
Fn are the respective Fourier frequencies, from zero to Nyquist. This is one of the purposes of this simple program: only positive frequencies.

The other purpose is for the user to see how to get the same result via complex exponentials or Fourier trigonometric series (sines and cosines), although this methods are slower than the FFT.

The M-file comes with the example of the screenshot.

See also INVERSEFOURIERTRANSFORM.M:
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=13328

引用格式

Carlos Adrian Vargas Aguilera (2024). FourierTransform.m (https://www.mathworks.com/matlabcentral/fileexchange/13327-fouriertransform-m), MATLAB Central File Exchange. 检索时间: .

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在 Help Center 和 MATLAB Answers 中查找有关 Discrete Fourier and Cosine Transforms 的更多信息
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启发作品: FourierTransform2.m

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版本 已发布 发行说明
1.0.0.0

Little changes on the submit and the help.
BSD License