QIU Tianshuang   

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Paper Publications

脉冲噪声环境下循环ESPRIT新方法

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Indexed by:Journal Article

Date of Publication:2010-09-25

Journal:通信学报

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

Volume:31

Issue:9

Page Number:88-93

ISSN:1000-436X

Key Words:循环平稳;a稳定分布;分数低阶循环统计量;波达方向估计;TLS-cyclic-ESPRIT算法

Abstract:以a稳定分布作为噪声模型,研究了脉冲噪声环境下循环平稳信号的波达方向估计问题.针对在脉冲噪声环境中,基于传统二阶循环统计量的算法效果显著退化的问题,提出了分数低阶循环相关矩阵概念;并在此基础上,提出了分数低阶总体最小二乘(TLS)循环ESPRIT算法的2种形式.计算机仿真表明所提出的算法可有效地估计出脉冲噪声条件下的波达方向,其性能优于传统的基于二阶循环统计量的循环ESPRIT类算法,有潜在的应用前景.

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