QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:无源雷达目标信号时延与多普勒频率联合估计

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Date of Publication:2015-05-25

Journal:通信学报

Included Journals:EI、PKU、ISTIC、CSCD

Volume:36

Issue:5

Page Number:47-53

ISSN No.:1000-436X

Key Words:短时分数阶傅里叶变换;时延;Doppler频移;无源雷达

Abstract:提出一种基于STFRFT的无源雷达目标时延与多普勒联合估计新方法.首先,给出了一种STFRFT时频分辨率量化方法及其数学表达式;其次,利用STFRFT的投影包络对回波信号时延与Doppler频移进行了联合估计;最后,讨论分析了脉内信噪比、高斯窗参数等对所提方法估计性能的影响.仿真结果表明,与CAF方法相比,所提方法更容易获得高精度的时延与Doppler频移的联合估计,具有更高的可靠性.

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