Analog implementation of Morlet wavelet transform using switched-current circuits

被引：0
|
作者：
Hu, Qin-Chun [1 ]
Huang, Li-Hong [1 ]
He, Yi-Gang [2 ]
Li, Hong-Min [2 ]
机构：
[1] College of Mathematics and Econometrics, Hunan Univ., Changsha 410082, China
[2] College of Electrical and Information Engineering, Hunan Univ., Changsha 410082, China
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2009年 / 36卷 / 02期
关键词：
Rational functions - Signal processing - Timing circuits - Gaussian distribution - Low power electronics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In order to meet the application requirement in signal processing for low-voltage, low-power and real-time, a method for the analog implementation of Morlet wavelet transform (WT), based on switched current (SI) circuits, was proposed. Gaussian function generators play a key role in the analog hardware implementation of Morlet WT. The rational form of Gaussian function can be given with Pade approximation so that Gaussian function generator can be conveniently implemented with the cascade of SI first order section and second order section. Simulation results have shown that the method is feasible.
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页码：58 / 61
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