一种基于相位干涉仪的单站无源定位技术研究  

Design and Research of Single Station Passive Location System Based on Phase Interferometer

作　　者：罗正华[1] 廖钧华 蒋霓 刘洋[1] LUO Zhenghua;LIAO Junhua;JIANG Ni;LIU Yang(School of Electronic Information and Electrical Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]成都大学电子信息与电气工程学院,四川成都610106

出　　处：《成都大学学报（自然科学版）》2020年第3期286-291,共6页Journal of Chengdu University（Natural Science Edition）

基　　金：四川省科技厅科技计划项目(2018JZ0065、2018GZ0509)。

摘　　要：针对传统的多站无源定位技术成本较高且机动性较差等问题,探讨了一种基于相位干涉仪的单站无源定位技术.首先,利用相位干涉仪测出目标相位差信息,采用一种相位差解模糊算法来提高准确度,并计算出目标角度及角度变化率信息.然后,结合具有机动性的观测平台的速度,计算出目标与观测平台的径向距离.最后,结合角度/角度变化率信息和径向距离,实现对目标的定位。与其他无源定位技术相比,该技术成本低且灵活性高.通过MATLAB仿真结果表明,该定位技术可以有效提高目标定位的准确性,为工程实现奠定了理论基础.Aiming at the problems of high cost and poor mobility of traditional multi-station passive location technology,a single-station passive location technology based on phase interferometer is studied in this paper.Firstly,the phase information of the target is measured by phase interferometer.At the same time,a phase difference ambiguity resolution algorithm is used to improve the accuracy,and the angle/angle change rate information of the target is calculated.Then,the radial distance between the target and the observation platform is calculated by taking the velocity of the maneuverable observation platform into consideration.The angle/angle change rate information and radial distance are used to locate the target.Compared with other passive location technologies,this technology has low cost and high flexibility.The simulation results of MATLAB show that the positioning technology can effectively improve the accuracy of target positioning and lay a theoretical foundation for engineering realization.

关 键 词：单站无源定位 相位干涉仪 相位差变化率 相位差解模糊 

分 类 号：TN953[电子电信—信号与信息处理]