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基于开关电流电路的时域高斯类小波变换实现

更新时间:2020-07-26 04:47:51 大小:245K 上传用户:六3无线电查看TA发布的资源 标签:开关电流电路 下载积分:5分 评价赚积分 (如何评价?) 收藏 评论(0) 举报

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本文提出了高斯类小波变换的开关电流电路时域法实现,通过分析其时域表达的相似结构,在时域用具有共享单元阵列系统实现高斯类小波变换.高斯类小波变换电路实现的核心在于高斯函数单元电路的开关电流电路实现,通过Pade变换可得到高斯函数单元的有理分式逼近,其电路由开关电流一阶电路、二阶电路的级联实现.调整开关电流电路的时钟频率可改变小波变换的尺度因子,从而实现多尺度上的高斯类小波变换.本文提出方法的可行性得到仿真结果证实.

This paper presents an analog and time-domain implementation of Gaussian-like wavelet transform using switched current (SI) circuits. Gaussian-like wavelet transforms,existing common factors in time-domain expressions ,can be realized by shared structure using SI technique. SI Gaussian unit plays a very important role in the analog implementation of Gaussian-like wavelet transform and it can be easily implemented with the cascade of SI first order circuits and second order circuits. The rational form of Gaussian function can be given by Pade transformation. By changing the frequency of SI circuits,Gaus- sian-like wavelet transform at various scales can be performed. The good performance of the proposed method is verified by simulat...

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基于开关电流电路的时域高斯类小波变换实现.pdf 245K

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