Title :
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
fDate :
May 30 2010-June 2 2010
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;
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
DOI :
10.1109/ISCAS.2010.5537374
