Design and Implementation of Wavelet Filter Using Switched-current Circuits

2005 ◽  
Author(s):  
Qinchun Hu ◽  
Yigang He ◽  
Meirong Liu ◽  
Dixin Guo ◽  
Hongmin Li
Keyword(s):  
Wavelet Filter ◽  
Design And Implementation ◽  
Switched Current

Analog Implementation of Wavelet Filter Based on Switched Current Circuits

2013 ◽  
Vol 333-335 ◽  
pp. 588-591
Author(s):  
Qin Chun Hu
Keyword(s):  
Filter Bank ◽  
Transfer Functions ◽  
Padé Approximation ◽  
Wavelet Filter ◽  
Impulse Responses ◽  
Analog Filter ◽  
First Derivative ◽  
Basic Wavelet ◽  
Switched Current ◽  
Analog Implementation

Scheme for the implementation of wavelet filter using switched-current (SI) circuits is presented in this paper. The circuits are composed of analog filter bank whose impulse responses are the first derivative of Gaussian and its dilations. The transfer functions of the basic wavelet filter can be given by Pade approximation. Therefore wavelet filter can be conveniently implemented by SI circuits. Simulated results indicated a good performance of wavelet filter.

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