QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:对称 Alpha 稳定分布噪声下单天线干扰消除算法

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Date of Publication:2015-03-25

Journal:信号处理

Included Journals:PKU、ISTIC、CSCD

Volume:31

Issue:3

Page Number:267-273

ISSN No.:1003-0530

Key Words:码间干扰;同信道干扰;单天线干扰消除;Alpha 稳定分布;延迟粒子滤波

Abstract:蜂窝移动通信系统性能受限于码间干扰、同频干扰和脉冲噪声等因素。本文提出一种基于粒子滤波的单天线干扰消除算法。首先,对脉冲噪声采用 Alpha 稳定分布进行建模,并对该模型进行高斯近似,递推得到多个未知信道参数的联合后验概率。其次,提出基于延迟粒子滤波的同信道传输码元最大后验估计方法。理论推导和仿真实验结果表明本文算法能够消除码间干扰和同频干扰对码元检测的影响,与其他干扰消除算法相比,特别是在强脉冲噪声和未知信道参数情况下,具有一定的优势。

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