DocumentCode :
2720773
Title :
Analog Gabor transform filter with complex first order system
Author :
Kamada, Harumi ; Aoshima, Nobuharu
Author_Institution :
Graduate Sch. of Eng., Tsukuba Univ., Ibaraki, Japan
fYear :
1997
fDate :
29-31 Jul 1997
Firstpage :
925
Lastpage :
930
Abstract :
We propose an analog Gabor transform filter. Gabor function is widely used for digital time-frequency analysis as nonorthogonal wavelet. However, it has never been reported in analog filtering. The proposed filter is realized as cascade connection of CFOS (complex first order system). The impulse response of the filter will be considered as the product of a window function and a sinusoidal wave. Because the window function is approximated to Gaussian function, we regard the whole system as Gabor transformer. We have actually constructed the proposed filter, and measured the characteristics. Its mathematical foundation and experimental results are presented
Keywords :
filtering theory; transforms; transient response; CFOS; analog Gabor transform filter; cascade connection; complex first-order system; digital time-frequency analysis; filter impulse response; nonorthogonal wavelet; sinusoidal wave; window function; Filter bank; Filtering; Finite impulse response filter; Gabor filters; IIR filters; Signal processing; Speech analysis; Speech processing; Time frequency analysis; Wavelet analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
SICE '97. Proceedings of the 36th SICE Annual Conference. International Session Papers
Conference_Location :
Tokushima
Type :
conf
DOI :
10.1109/SICE.1997.624876
Filename :
624876
Link To Document :
بازگشت