QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:一种韧性的高分辨率多径时延估计方法

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Date of Publication:2008-01-15

Journal:系统工程与电子技术

Included Journals:PKU、ISTIC、CSCD

Volume:30

Issue:1

Page Number:41-45

ISSN No.:1001-506X

Key Words:多径时间延迟;高分辨率;α稳定分布;共变;松弛搜索

Abstract:将观测数据的噪声建模为á稳定分布,运用分数低阶统计量理论中的共变概念和最小分散系数准则,结合用于解决高维非线性最小二乘优化问题的松弛搜索思想,借鉴高分辨率多径时延估计算法WRELAX、DS-WRELAX,提出了一种韧性的高分辨率多径时延估计算法RHMTDE.理论分析和仿真结果表明,该算法有抗粗差的能力,在高斯噪声和脉冲噪声环境中都可以较好地估计出多径观测信号中每径的时间延迟.

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