期刊文献+

基于开关电流技术的时域连续小波变换实现 被引量:5

Time-Domain Implementation of Continuous Wavelet Transform Based on Switched Current
下载PDF
导出
摘要 首次提出基于开关电流技术的时域法连续小波变换实现。该方法利用幅度调制技术产生小波链实现小波变换,为小波变换的快速实现提供了新的途径。基于双线性变换采用开关电流积分器综合实现低通滤波器,解决了时域法小波变换实用电路集成化的关键问题。对开关电流低通滤波器用ASIZ进行仿真,结果证实其性能完全满足实用要求。 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.
出处 《电子与信息学报》 EI CSCD 北大核心 2007年第1期227-231,共5页 Journal of Electronics & Information Technology
基金 国家自然科学基金(50677014) 高校博士点基金(20060532016) 湖南省自然科学基金(06JJ2024) 教育部新世纪优秀人才支持计划(NCET-04-0767)资助课题
关键词 开关电流 时域 连续小波变换 幅度调制 小波链 Switched-current Time-domain Continuous wavelet transform Amplitude modulation Wavelet chain
  • 相关文献

参考文献10

  • 1Mallat S. A Wavelet Tour of Signal Processing(second edition). New York: Academic,1999: 50-91.
  • 2苏立,何怡刚.连续小波变换VLSI实现综述[J].电路与系统学报,2003,8(2):86-91. 被引量:19
  • 3田逢春,金吉成.用线性模拟滤波器实现连续小波变换[J].重庆大学学报(自然科学版),1998,21(5):35-40. 被引量:5
  • 4Edwards R T and Cauwenberghs G. A VLSI implementation of the continuous wavelet transform. Proc. of IEEE Int. Symp.Cir. & Sys. Atlanta GA, 1996, 4: 368-371.
  • 5Lin J, Ki W-H, and Edwards T, et al. Analog VLSI implementations of auditory wavelet transforms usingswitched-capacitor circuits [J]. IEEE Trans. Ckt & Syst., 1994,41(9): 572-583.
  • 6Moreira-Tamayo O and Pineda de Gyvez J. Time-domain analog wavelet transform in real-time [A]. Proc. of IEEE Int. Symp. Ckt & Syst. [C], Seattle WA, 1995, 3: 1640-1643.
  • 7Toumazou C, Hughes J B, and Battersby N C. Switched Currents: An Analogue Technique for Digital Technology.London: Peter Peregrinus Ltd, 1993: 2-3.
  • 8Akl Y, El-Sayed M, and Aboul-Seoud A K. CMOS four-quadrant current multiplier using switched current techniques. Electronics Letters, 2004, 40(6): 359-360.
  • 9Stephcnson F W. RC Active Filter Design Handbok. New York: John Wiley and Sons, 1985: 26-29.
  • 10De Querioz A C M, Pinheiro P R M, and Caloba L P. Nodal analysis of switched current filters. IEEE Trans. Circuits Syst.-Ⅱ, 1993, 40(1): 10-18.

二级参考文献10

共引文献20

同被引文献31

  • 1袭著燕,路长厚,张建川,潘伟.基于小波分析的交流伺服电流中摩擦影响信息特征提取的研究[J].机械工程学报,2005,41(6):39-43. 被引量:8
  • 2胡沁春,何怡刚,李宏民,朱彦卿.基于开关电流的连续小波变换实现[J].湖南大学学报(自然科学版),2005,32(5):66-70. 被引量:8
  • 3胡沁春,何怡刚,郭迪新,李宏民.基于开关电流技术的小波变换的滤波器电路实现[J].物理学报,2006,55(2):641-647. 被引量:11
  • 4赵文山,何怡刚,晏进喜,李必安.连续小波变换开关电流电路的实现[J].半导体技术,2006,31(4):295-299. 被引量:4
  • 5ToumazouJ,LidgeyCF&HaighDG.模拟集成电路设计-电流模法[M].姚玉洁,译.北京:高等教育出版社,1996.
  • 6Casson A J, Yates D C, Patel S,et al. An analogue bandpass filter realization of the Continuous Wavelet Transform [C]//In conference of the IEEE EMBS.Lyon: Engineering in Medicine and Biology Society,2007:1850- 1854.
  • 7Efwards R T,Cauwenberghs G.A VLSI implementations of the continous wavelet tranforms[C]//Prodeedings of the IEEE International Symposium on Circuits and Systems Piscataway, N J, USA : IEEE, 1996 : 368-371.
  • 8徐长发,李国宽,等.实用小波变换(第二版)[M].武汉:华中科技大学出版社,2004:43-63.
  • 9Toumazou C,Hughes J B,Battersby N C.开关电流:数字工艺的模拟技术[M].北京:高等教育出版社,1997.
  • 10Mallat St6 phane. A Wavelet Tour of Signal Processing: The Sparse Way[M]. 3rd ed. New York: Academic Press, 2008 : 1-60.

引证文献5

二级引证文献9

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部