存在站址误差下的时频差稳健定位算法
发布时间:2022-07-20 14:41
针对现有算法定位精度低,稳健性差的问题,该文基于误差校正的思想,改进了经典两步加权最小二乘(TSWLS)算法的步骤2,提出一种站址误差条件下基于到达时间差(TDOA)和到达频率差(FDOA)的高精度、稳健动目标无源定位算法。所提算法的步骤2对步骤1中引入的辅助变量进行泰勒展开以构建误差校正方程,避免了经典两步加权最小二乘算法中的矩阵缺秩问题和非线性运算,提高了算法的稳健性和定位精度。理论分析表明,在小噪声条件下该算法定位精度可达克拉美罗下界(CRLB)。仿真结果表明,在常见量级的站值误差及测量误差下,相比于现有算法,该文算法具有更强的稳健性和更优的抗噪性。
【文章页数】:9 页
【参考文献】:
期刊论文
[1]传感器参数误差下的运动目标TDOA/FDOA无源定位算法[J]. 孙霆,董春曦. 航空学报. 2020(02)
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本文编号:3664182
【文章页数】:9 页
【参考文献】:
期刊论文
[1]传感器参数误差下的运动目标TDOA/FDOA无源定位算法[J]. 孙霆,董春曦. 航空学报. 2020(02)
[2]Structural total least squares algorithm for locating multiple disjoint sources based on AOA/TOA/FOA in the presence of system error[J]. Xin CHEN,Ding WANG,Rui-rui LIU,Jie-xin YIN,Ying WU. Frontiers of Information Technology & Electronic Engineering. 2018(07)
[3]基于定位误差修正的运动目标TDOA/FDOA无源定位方法[J]. 刘洋,杨乐,郭福成,姜文利. 航空学报. 2015(05)
[4]Joint TDOA and AOA location algorithm[J]. Congfeng Liu,Jie Yang,Fengshuai Wang. Journal of Systems Engineering and Electronics. 2013(02)
本文编号:3664182
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