基于相位差变化率的无源定位及误差分析

doi:10.3969/j.issn.1009-086x.2020.01.009

现代防御技术 ›› 2020, Vol. 48 ›› Issue (1): 57-61.DOI: 10.3969/j.issn.1009-086x.2020.01.009

基于相位差变化率的无源定位及误差分析

姜智强, 山世浩, 张恒, 黄烽

中国洛阳电子装备试验中心,河南洛阳 471003

收稿日期:2019-05-21 修回日期:2019-06-28 出版日期:2020-02-20 发布日期:2021-01-20
作者简介:姜智强(1988-),男,河南柘城人。工程师,硕士,研究方向为雷达与雷达对抗。通信地址:471003 河南省洛阳市061信箱403分箱 E-mail:jiang20062250105@163.com

Passive Location and Error Analysis Based on Change Rate of Phase Difference

JIANG Zhi-qiang, SHAN Shi-hao, ZHANG Heng, HUANG Feng

China Luoyang Electronic Equipment Test Center,Henan Luoyang 471003,China

Received:2019-05-21 Revised:2019-06-28 Online:2020-02-20 Published:2021-01-20

摘要/Abstract

摘要： 在分析基于相位差变化率二维无源定位原理和方法的基础上,建立了测向误差和测距误差模型。通过分析误差模型发现,相位差变化率误差是影响定位误差的主要因素。采用数字仿真的方式,分析了目标与观测站相对位置、相位差误差对测向误差的影响,以及测向误差、相位差变化率误差对相对测距误差的影响。最后采用扩展卡尔曼滤波的方法对测距数据进行处理,实现了相对测距误差的快速收敛,进而有效提高了运动观测站对固定目标的无源定位精度。

关键词: 无源定位, 相位差变化率, 测向误差, 测距误差, 干涉仪, 扩展卡尔曼滤波

Abstract: The model of direction finding error and ranging error were established based on the principle and method of two-dimensional passive location. The analysis of error model show that, phase difference change rate error was the main influence factor of location error. In addition, not only the influence of relative position of target and observation station on azimuth error, but also the influence of direction finding error and phase difference rate error on distance measurement were analyzed. Finally, the relative ranging error of the ranging data was realized by using extended Kalman filter (EKF), which effectively improves the passive positioning accuracy of the moving observation station to the fixed target.

Key words: passive location, phase difference rate, direction finding error, ranging error, interferometer, extended Kalman filter (EKF)

中图分类号:

姜智强, 山世浩, 张恒, 黄烽. 基于相位差变化率的无源定位及误差分析[J]. 现代防御技术, 2020, 48(1): 57-61.

JIANG Zhi-qiang, SHAN Shi-hao, ZHANG Heng, HUANG Feng. Passive Location and Error Analysis Based on Change Rate of Phase Difference[J]. Modern Defense Technology, 2020, 48(1): 57-61.

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基于相位差变化率的无源定位及误差分析

Passive Location and Error Analysis Based on Change Rate of Phase Difference

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