AVERAGING ANALYSIS OF LOCAL STABILITY OF A REAL CONSTANT MODULUS ALGORITHM ADAPTIVE FILTER

被引：13

作者：

JOHNSON, CR ^{[1
]}

DASGUPTA, S ^{[1
]}

SETHARES, WA ^{[1
]}

机构：

[1] UNIV IOWA,DEPT ELECT & COMP ENGN,IOWA CITY,IA 52242

来源：

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING | 1988年 / 36卷 / 06期

关键词：

CONTROL SYSTEMS; ADAPTIVE; -; Stability;

D O I：

10.1109/29.1601

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The constant modulus algorithm (CMA) of adaptive filtering was developed for usage when the modulus of the desired signal is known, but its specific value at every sample instant is not known. A real-arithmetic version of CMA was recently proposed, and studied using simulations, by J. R. Treichler and M. G. Larimore (ibid. , vol. ASSP-33, pp. 420-431, Apr. 1985). Local stability of their arithmetic version of CMA is proven in two applications: (i) channel equalization for a transmitted sequence of plus and minus ones, and (ii) the separation of a sinusoidal signal from its sum with a number of sinusoidal interferers at separate frequencies. The proofs utilize dynamic system stability theorems from averaging theory, which is a technique currently being utilized in the stability analysis of a variety of adaptive systems.

引用

页码：900 / 910

页数：11

共 12 条

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