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中文摘要：
提出了一种基于CMOS对数域积分器的连续Marr小波变换模拟VLSI实现方法。构造了Marr母小波时域逼近函数模型，用Levenbery-Marquardt非线性最小二乘法求解模型参数最优解，得到母小波逼近函数。设计了以CMOS对数域积分器为积木块的小波变换电路，该电路由冲激响应为母小波逼近函数及其伸缩函数的滤波器组构成，滤波器组采用低灵敏度的IFLF结构进行综合。SPICE仿真结果表明该方法的可行性。
英文摘要：
For applications requiring low-power low-voltage and real-time, a novel analog VLSI implementation of continuous Marr wavelet transform based on CMOS log-domain integrator is proposed. Marr mother wavelet is approximated by a parameterized class of function. Using Levenbery-Marquardt method, the optimum parameters of wavelet approximation function are obtained. The circuits of implementating Marr wavelet transform are composed of analog filter banks whose impulse response is the required wavelet approximation function. The filter design employs CMOS log-domain integrators as main building blocks and uses IFLF structure with low sensitivity. SPICE simulations indicate a excellent approximations of ideal wavelet.
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