基于运动单站的LTE辐射源定位技术  

LTE radiation source positioning technologybased on mobile single station

作　　者：郭津晶 郎荣玲[1] 薛疏桐 GUO Jinjing;LANG Rongling;XUE Shutong(College of Electronic and Information Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《导航定位与授时》2024年第4期85-93,共9页Navigation Positioning and Timing

摘　　要：长期演进(LTE)信号具有覆盖范围广泛、带宽大、自相关特性良好、抗衰落能力强及发射功率大等诸多有利于定位的优点,是一种可用于定位的主要机会信号。基于LTE信号的定位方法需要利用辐射源的位置信息进行解算,在非合作环境中获取基站的位置信息是使用LTE信号进行定位的基础。提出了一种利用移动单站获取LTE辐射源位置的定位方法,以到达时间差(TDOA)为观测量,建立了包含钟差校准的定位模型,并从单站的运动轨迹和初始点选取两个方面分析了算法的收敛性和定位精度。通过行人以及车载两种方式,在实际环境中对定位方法的性能进行了测试,实验结果表明,该方法的定位误差小于10 m。Long term evolution(LTE)signals have become major opportunity signals for positioning with the advantages of wide coverage,large bandwidth,good autocorrelation characteristics,strong anti-fading capability and high transmission power.The positioning method based on LTE signals uses the location information of the radiation source for calculation,and obtaining the location information of the radiation source in a non-cooperative environment is the basis of the positioning using LTE signals.A positioning method of LTE radiation sources using a mobile single station is proposed.Taking time difference of arrival(TDOA)as the observation quantity,a positioning model including clock error calibration is established,and the convergence and positioning accuracy of the algorithm are analyzed in terms of the single station s moving track and initial point selection.The performance of the positioning method is tested in the actual environment by pedestrian and vehicle,and the experimental results show that the positioning error of this method is less than 10 m.

关 键 词：辐射源定位 到达时间差 长期演进 机会信号导航 移动单站 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]