设计了一种低复杂度系数的无损离散积分器数字滤波器

2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI:10.1109/PACRIM.2001.953696

T. W. Fox, L. Turner

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引用次数: 2

摘要

提出了一种基于离散约束优化公式和约束模拟退火(CSA)的低复杂度有限精度系数(FPC)无损离散积分器(LDI)数字滤波器设计方法。简单的浮点精度系数量化等无约束优化方法无法精确控制所需系数加减法的个数。结果表明，在满足通带纹波规格和实现小阻带纹波的同时，可以控制系数复杂度(系数加法器和减法器的数量)。以较大的阻带纹波为代价，可以实现极低的系数复杂度滤波器。

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The design of a lossless discrete integrator digital filter with low complexity coefficients

A method for the design of a lossless discrete integrator (LDI) digital filter with low complexity finite precision coefficients (FPC) based on a discrete constrained optimization formulation and constrained simulated annealing (CSA) is presented. Simple quantization of floating point precision coefficients and other unconstrained optimization methods cannot precisely control the number of required coefficient adders and subtractors. It is shown that it is possible to control the coefficient complexity (the number of coefficient adders and subtractors) while still meeting the passband ripple specifications and achieving a small stopband ripple. Extremely low coefficient complexity filters can be achieved at the expense of a larger stopband ripple.

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来源期刊

2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)

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