迭代频差定位算法及其性能分析  

Iteration FDOA location algorithm and its performance analysis

作　　者：杨洁[1] 刘聪锋[2] 

机构地区：[1]西安邮电大学通信与信息工程学院,陕西西安710121 [2]西安电子科技大学电子对抗研究所,陕西西安710071

出　　处：《西安电子科技大学学报》2013年第5期8-14,共7页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61271300;61072107);陕西省教育厅自然科学类专项科研计划资助项目(2013JK1076);十二五武器装备预研资助项目(XXX010202XX);陕西省工业攻关资助项目(2013K06-33;2012K06-12);中央高校基本科研业务费资助项目(K0551302006)

摘　　要：针对频差定位中的运动观测站对固定辐射源的定位场景,提出了基于迭代方法实现目标位置求解的定位算法,解决了基于频差定位方法的目标位置求解问题.所提方法分为载频已知和载频未知两种情况.当载频已知时,利用频差测量方程进行迭代求解目标位置;当载频未知时,利用频率测量方程进行迭代求解目标位置和辐射信号载频.分析了频差定位算法的定位精度并进行了仿真,验证了理论分析的正确性和算法的有效性.For the FDOA location scene of locating the fixed radiation source with a moving observation station,an algorithm based on the iterative method is proposed,which can be used to solve the problem of calculating the target position in the FDOA location.The proposed algorithm includes two situations,one with the carrier frequency known,and the other with the carrier frequency unknown.In the condition of the known carrier frequency,the measured frequency difference equation is used to figure out the target position in an iterative way; in the case of the unknown frequency,the measured frequency difference equation is used to figure out both the target position and carrier frequency from the emitter in an iterative way.The location accuracy of the FDOA location algorithm is analyzed in detail,and furthermore,an elaborative simulation is given,which proves the accuracy and effectiveness of the theoretical analysis,and provides the FDOA location algorithm with a theoretical foundation.

关 键 词：无源定位 频差定位 迭代法 性能分析 

分 类 号：TP957[自动化与计算机技术]