Log-domain Wavelet filters

摘要：

For applications requiring low-power low-voltage and real-time, a novel analog VLSI implementation of continuous Marr wavelet transform based on CMOS logdomain integrator is proposed. Marr mother wavelet is approximated by a parameterized class of function and with Lcvenbery-Marquardt nonlinear least square method, the optimum parameters of this function are obtained.The circuits of implementating Marr wavelet transform are composed of analog filter whose impulse response is the required wavelet. The filter design is based on IFLF structure with CMOS log-domain integrators as the main building blocks.SPICE simulations indicate an excellent approximation of ideal wavelet.

作者: Hong-Min Li He-Yi Gang Guo-Yun Zhang Guan-Qi Guo

作者单位: School of Information and Communication Engineering Hunan Institute of Science and Technology Yueyan College of Electrical and Information Engineering,Hunan Univ,Changsha 410082, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 409-411

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）