一种基于星载多波束天线的单星干扰源定位方法

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。

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

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 utilizing 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.