QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:脉冲噪声环境下一种韧性的时延与多普勒频移联合估计法

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Date of Publication:2007-09-15

Journal:电子学报

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

Volume:35

Issue:9

Page Number:1680-1684

ISSN No.:0372-2112

Key Words:对称α稳定分布;多普勒频移;分数低价统计量;模糊函数

Abstract:由于α稳定分布噪声会降低基于二阶循环统计量的传统方法的性能,本文基于分数低阶统计量理论提出p阶循环相关的概念并给出相应性质及证明,在此基础上对已有的循环模糊函数进行了广义化.计算机仿真表明,这种广义的循环模糊函数能够在高斯和α稳定分布噪声条件下有效地联合估计时延和多普勒频移,其性能不仅优于基于二阶循环相关的CCA(循环模糊函数)法,也优于FLOAF(分数低阶模糊函数)法,是韧性的、具有更广泛应用意义的方法.

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