Conference paper
Aliasing in the Complex Cepstrum of Linear-Phase Signals
Assuming linear-phase of the associated time signal, this paper presents an approximated analytical description of the unavoidable aliasing in practical use of complex cepstrums. The linear-phase assumption covers two major applications of complex cepstrums which are linear- to minimum-phase FIR-filter transformation and minimum-phase estimation from amplitude specifications.
The description is made in the cepstrum domain, the Fourier transform of the complex cepstrum and in the frequency domain. Two examples are given, one for verification of the derived equations and one using the description to reduce aliasing in minimum-phase estimation
Language: | English |
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Publisher: | IEEE |
Year: | 1997 |
Pages: | 1598-1602 |
Proceedings: | First International Conference on Information, Communication & Signal Processing |
ISBN: | 0780336763 and 9780780336766 |
Types: | Conference paper |
DOI: | 10.1109/ICICS.1997.652264 |
Amplitude estimation Cepstral analysis Cepstrum Discrete Fourier transforms Equations FIR filters FIR-filter transformation Fourier transforms Frequency domain analysis Frequency response Signal analysis Signal processing aliasing reduction cepstral analysis cepstrum domain complex cepstrum deconvolution filtering theory frequency domain frequency-domain analysis linear-phase signals minimum-phase estimation phase estimation