一种基于星载多波束天线的单星干扰源定位方法  

Single Satellite Interference Location based on Satellite- borne Multi- beam Antenna

作　　者：余强[1] 谢智东[1] 张更新[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《通信技术》2015年第1期37-40,45,共5页Communications Technology

基　　金：国家自然科学基金青年科学基金项目(No.61401507)~~

摘　　要：针对地球同步轨道通信卫星,提出了一种基于星载多波束天线的单星干扰源定位方法。该方法利用星载多波束天线的方向性,通过求解三个波束的等信号强度曲线交点确定干扰源位置。首先,估计干扰信号在多波束环境下的强度分布;其次结合天线方向图的数学模型,建立关于干扰信号链路计算的方程组;最后求解该方程组实现干扰源定位。采用上述单星定位方法对地面干扰源进行了定位仿真,结果表明了该方法的有效性。Aiming at the GEO satellites, this paper proposes a method of single satellite interference source location based on satellite-bone multi-beam antenna. This method could realize interference location by u- tilizing the directivity of multi-beam antenna and solving the intersection of signal intensity curve of three beams. Firstly, it estimates the strength distribution of interference signal in multi-beams; then establish the equations about link calculation of interference signal in combination with the mathematical model of antenna pattern; finally, the interference source localization is achieved through solving the equations. In addition, the simulation upon the ground interference with the proposed method is carried out and the result verifies its effectiveness.

关 键 词：多波束 方向图 干扰源定位 蒙特卡洛方法 

分 类 号：TN967[电子电信—信号与信息处理]