QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:一种基于多循环频率的韧性时延与多普勒频移联合估计算法

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Date of Publication:2011-10-15

Journal:电子学报

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

Volume:39

Issue:10

Page Number:2311-2316

ISSN No.:0372-2112

Key Words:循环平稳特性 对称α稳定分布噪声 模糊函数 时间延迟 多普勒频移

Abstract:本文提出了一种基于分数低阶循环模糊函数的多循环频率时延与多普勒频移联合估计算法.该方法将分数低阶矩与循环平稳特性相结合,能够在SαS(Symmetric α Stable)脉冲噪声条件下检测信号的循环平稳特性.算法充分利用了信号的循环频率信息,具备较强的抑制干扰能力.仿真结果表明,在脉冲噪声和干扰环境中本文提出的算法均能稳定工作,估计性能优于基于二阶循环模糊函数和p阶循环模糊函数的算法,是一种韧性的时延与多普勒频移联合估计算法.

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