王超然,,
孙萌
1.哈尔滨工程大学 哈尔滨 150001
2.先进船舶通信与信息技术工业和信息化部重点实验室 哈尔滨 150001
基金项目:国家自然科学基金(61801143)，中央高校基本科研业务费专项资金(3072020CF0814)
详细信息
作者简介:曲志昱：女，1983年生，副教授，研究方向为电子侦察与对抗、阵列信号测向
王超然：男，1996年生，硕士生，研究方向为星载侦察定位
孙萌：男，1997年生，硕士生，研究方向为阵列信号测向
通讯作者:王超然 xhxhxhwcr@163.com
中图分类号:TN953计量
文章访问数:389
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被引次数:0
出版历程
收稿日期:2020-06-29
修回日期:2020-12-09
网络出版日期:2020-12-31
刊出日期:2021-10-18
Tracking Method of Moving Target for Three-satellite TDOA/FDOA/DOA System Based on Improved IEKF Algorithm
Zhiyu QU,Chaoran WANG,,
Meng SUN
1. Harbin Engineerinnbag University, Harbin 150001, China
2. Key Laboratory of Advanced Marine Communication and Information Technology, Ministry of Industry and Information Technology, Harbin 150001, China
Funds:The National Natural Science Foundation of China (61801143), The Fundamental Research Funds for the Central Universities (3072020CF0814)
摘要
摘要:针对传统3星时频差定位系统在未知高程情况下，对运动辐射源会产生由目标速度引发的定位误差的问题，该文提出一种利用主星的干涉仪测向信息的改进迭代扩展卡尔曼滤波(IEKF)，结合3星时差、频差信息的无源融合动目标跟踪新方法。首先，在坐标系转换的基础上建立了定位模型，并在此基础上利用改进的迭代扩展卡尔曼滤波算法对未知高程的运动目标进行跟踪。仿真结果表明，该方法无需获知目标的高程信息即可实现对运动辐射源的定位、跟踪和测速，且对目标的位置、速度估计性能有较大的提高。
关键词:无源定位/
定位跟踪/
干涉仪/
时差频差
Abstract:In case of the traditional three-satellite time-frequency difference positioning system with unknown elevation, it will produce positioning errors caused by the target speed to the moving state radiation source. A new method of fusion passive tracking is proposed, which uses the Direction Of Arrival (DOA) information of the main star and combines the Time Difference Of Arrival (TDOA) and Frequency Difference Of Arrival (FDOA) information of the three satellites. First, a positioning model is established on the basis of coordinate system transformation, and on this basis, an improved Iterative Extended Kalman Filter (IEKF) algorithm is used to track moving objects of unknown elevation. The simulation results of the algorithm show that this method can realize the positioning, tracking and speed measurement of the moving radiation source without knowing the height information of the target, and the position and speed estimation of the target are improved.
Key words:Passive position/
Positioning tracking/
Interferometer/
Time Difference Of Arrival (TDOA)
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