Functions > Signal Processing > Spectral Analysis > Cepstrum and Complex Cepstrum
Cepstrum and Complex Cepstrum
cepstrum(v)—Returns the cepstrum of vector v.
The cepstrum of a signal is sometimes called the spectrum of a spectrum.
ccepstrum(A)—Returns a vector or matrix containing the complex cepstrum of each column of a multichannel signal.
v is a real-valued vector.
A is a vector or matrix. If A is a matrix, then ccepstrum acts upon the individual columns.
Additional Information
The cepstrum function:
maps convolution and deconvolution to addition and subtraction in the frequency domain.
uses only the information of the magnitude of the spectrum, and does not allow the reconstruction of the signal.
The complex ccepstrum function holds information about magnitude and phase of the initial spectrum, allowing the reconstruction of the signal.
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