QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:Alpha稳定分布噪声中的韧性投影近似子空间跟踪算法

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Date of Publication:2009-03-15

Journal:电子学报

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:37

Issue:3

Page Number:519-522

ISSN No.:0372-2112

Key Words:递门最小M估计(RLM);Alpha稳定分布;波达角(DOA)估计;子空间跟踪

Abstract:为了克服投影近似子空间跟踪算法(PAST)在脉冲噪声环境下性能的退化,本文以Alpha稳定分布为脉冲噪声模型,依据韧性的M估计方法提出了一种新的代价函数,并推导出基于递归最小M估计的韧性投影近似自适应信号子空间跟踪算法(RLM-PAST).由于采用了适合噪声模型的M估计函数,新算法与采用递归最小二乘估计的子空间跟踪算法相比,在稳定分布脉冲噪声环境下具有更好的性能.把新方法应用于波达方向(OOA)估计,数值仿真结果表明了该算法的有效性.

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