Two-dimensional partially differential cepstrum and minimum-phase sequence construction

Author

Pei, Soo-Chang ; Lin, Huei-Shan

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ. (NTU), Taipei, Taiwan

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

993

Lastpage

996

Abstract

A new partially differential cepstrum is defined, which can be regarded as a new type of differential cepstrum. It saves half computational complexity compared with the previously defined differential cepstrum since only one dimension of partial derivative is considered. Nevertheless, this suffices for avoiding phase-unwrapping in complex-cepstrum calculation. As an application of complex cepstrum, we also introduce a windowing technique to construct the minimum-phase sequence from a mixed-phase one.

Keywords

cepstral analysis; computational complexity; filtering theory; half computational complexity; homomorphic filtering techniques; minimum-phase sequence construction; partial derivative; two-dimensional partially differential cepstrum construction; windowing technique; Cepstral analysis; Cepstrum; Computational complexity; Convergence; Filtering; Fourier transforms; Multidimensional signal processing; Multidimensional systems; Signal processing; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Conference_Location

Paris

Print_ISBN

978-1-4244-5308-5

Electronic_ISBN

978-1-4244-5309-2

Type

conf

DOI

10.1109/ISCAS.2010.5537374

Filename

5537374