Title :
An optimal design of homomorphic deconvolution system
Author :
Yamada, Isao ; Sakaniwa, Koh-ichi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Meguroku, Tokyo, Japan
Abstract :
An optimum design method is presented for a homomorphic deconvolution system using an exponentially weighted complex cepstrum with a band-pass filter. A precise compression is derived for the deconvolved signal by introducing a transmission factor, which is defined as the ratio of the deconvolved signal to the desired signal. An optimal deconvolution system is defined as the system which maximizes the energy of the maximum distortion factor (=1-transmission factor). The performance of the proposed optimum system is greatly superior to that of the conventional system
Keywords :
signal processing; spectral analysis; speech analysis and processing; band-pass filter; deconvolved signal; exponentially weighted complex cepstrum; homomorphic deconvolution system; maximum distortion factor; optimal design; precise compression; speech analysis; transmission factor; Cepstral analysis; Cepstrum; Convolution; Deconvolution; Design engineering; Design methodology; Distortion; Signal analysis; Signal processing; Speech analysis;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100605
