QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:稳定分布噪声下基于高斯近似粒子滤波的干扰源定位算法

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Date of Publication:2012-09-25

Journal:信号处理

Included Journals:PKU、ISTIC、CSCD

Volume:28

Issue:9

Page Number:1248-1253

ISSN No.:1003-0530

Key Words:干扰源定位;高斯近似粒子滤波;多普勒频移;SαS分布噪声

Abstract:民航地空通信受到无线电干扰会严重危及民航飞机的正常飞行,本文在深入研究利用接收飞机散射信号的多普勒频移信息定位地面干扰源方法的基础上,提出基于高斯近似粒子滤波( GAPF)的定位算法.本文的主要贡献可以总结为:第一,对多普勒频移与干扰源坐标之间非线性关系进行深入研究,构建状态方程及观测方程.第二,考虑更能准确描述散射信道模型的对称α稳定分布(SαS)噪声作为叠加的背景噪声,并提出SαS噪声下的高斯近似粒子滤波算法.计算机仿真实验表明,与扩展卡尔曼滤波(EKF)及无迹卡尔曼滤波(UKF)算法相比,本文算法的估计性能优势明显,并且对SαS噪声具有较强的鲁棒性.

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