SFG Realization of Wavelet Filter Using Switched-Current Circuits

摘要：

A signal flow graph method for analogue implementation of wavelet transform using switched-current circuits is proposed in which the wavelet transform is synthesized by a bank of switched-current bandpass filters whose impulse responses are the mother wavelet and its dilations. To facilitate the implementation of arbitrary wavelet function,the proposed approach employs the signal flow graph methodology to design the wavelet filter. The first derivative of Gaussian wavelet is used as an example in this paper to illustrate design details.Simulation results show the feasibility of the proposed method.

关键词： Wavelet transform SFG Switched-current

作者: Wenshan Zhao Yigang He Yichuang Sun

作者单位: College of Electrical & Information Engineering,Hunan University,Changsha,Hunan 410082,China School College of Electrical & Information Engineering,Hunan University,Changsha,Hunan 410082,China School of ECEE,University of Hertfordshire,Hatfield,Hefts AL10 9AB,UK

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 37-40

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）