基于无人机辅助的高精度卫星干扰源定位  

High Accuracy Satellite Interference Geolocation Using UAV Assist

作　　者：郝才勇[1,2] 刘恒 

机构地区：[1]国家无线电监测中心深圳监测站,广东深圳518120 [2]伦敦帝国理工学院电子工程系

出　　处：《信号处理》2016年第12期1412-1417,共6页Journal of Signal Processing

摘　　要：针对传统双星定位方法难以实现高精度卫星干扰源定位的问题,提出了一种利用无人机辅助获得高精度定位的方法。使用无人机在干扰源所在区域的上空接收干扰上行信号,地面接收站分别测量经过卫星和无人机转发的干扰下行信号,在不同的观测时刻移动无人机位置,构造多时差联合定位方程组,再利用非线性最小二乘算法计算得出干扰源位置。仿真结果表明该方法能显著的提高卫星干扰源的定位精度,是一种定位精度高、稳定性强的定位方法。Traditional dual-satellite geolocation is different to achieve high accuracy of satellite interference geolocation. To address this issue, a method of using Unmanned Aerial Vehicle （UAV） assist in obtaining high accuracy geolocation is presented. UAV receives uplink signal of the interference over the interference area, after measuring the interfering downlink signal transferred by satellite and UAV respectively at ground receiving station, moves the position of the UAV at different measuring times, multi-Time Difference of Arrival （TDOA） union equation of geolocation is introduced, then estimates the position of the interference using nonlinear least square algorithm. The results of the simulation show that the proposed method can improve the localization accuracy of satellite interference significantly, and it is a high accuracy and strong steady satellite geolocation method.

关 键 词：卫星干扰源 高精度定位 无人机 多时差联合定位 参考站 

分 类 号：TN927[电子电信—通信与信息系统]