Title :
A VLSI implementation of the continuous wavelet transform
Author :
Edwards, R. Timothy ; Cauwenberghs, Gert
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
We have designed and fabricated a VLSI circuit which performs a continuous wavelet transform on a one-dimensional (e.g., sound) input in real time. This implementation uses oversampling techniques and simple switched capacitor filters to achieve good signal quality in a system which is small and consumes little power. Measurement results that validate correct operation of wavelet decomposition are included
Keywords :
CMOS integrated circuits; VLSI; mixed analogue-digital integrated circuits; parallel processing; real-time systems; switched capacitor filters; wavelet transforms; CMOS VLSI circuit; CWT; SC filters; VLSI implementation; continuous wavelet transform; one-dimensional input; oversampling techniques; real time operation; switched capacitor filters; Band pass filters; Capacitors; Circuits; Continuous wavelet transforms; Delta-sigma modulation; Demodulation; Digital modulation; Frequency; Very large scale integration; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541978
