① 湖南大学电气与信息工程学院 长沙 410082;② 湖南理工学院计算机与信息工程系 岳阳 414006
Time-Domain Implementation of Continuous Wavelet Transform Based on Switched Current
Hu Qin-chun①; He Yi-gang①; Guo Di-xin②; Li Hong-min①②
① College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;② Dept. of Computer and Info. Engineering, Hunan Institute of Science & Technology, Yueyang 414006, China
Abstract：Method for realizing time-domain Continuous Wavelet Transform (CWT) using Switched-current (SI) technology is firstly presented in this paper. It is shown a new way for fast implementation of CWT based on amplitude modulation techniques for generating wavelet chain. SI low pass filter is synthesized with SI integrators based on bilinear transform. Thus, It provides a solution to manufacture integrated chip of time-domain CWT. The SI low pass filter is simulated using ASIZ and verified to be able to meet the needs of time-domain CWT.
2007, Vol. 29 
