Circular Cross Correlation using FFT

版本 1.0.0.0 (1.7 KB) 作者: Johannes Schmitz
Calculate the circular and non-circular cross correlation using the FFT method.
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更新时间 2013/10/17

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Rough idea:
Get the crosscorrelation of two vectors a and b by:

e = fft(c);
f = fft(d);

g = e.*conj(f);

h = ifft(g);

See code for complete version and details like zeropadding.

引用格式

Johannes Schmitz (2025). Circular Cross Correlation using FFT (https://ww2.mathworks.cn/matlabcentral/fileexchange/43967-circular-cross-correlation-using-fft), MATLAB Central File Exchange. 检索时间: .

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1.0.0.0