基于圆形天线阵的GPS抗干扰性能仿真与其干扰方法研究

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GPS抗干扰性能的分析有助于研究GPS干扰方法和手段。基于目前空域滤波的GPS抗干扰技术,采用LCMV算法对圆形天线阵的GPS抗干扰性能进行分析仿真,并提出了对其进行干扰的方法。在Matlab中对单个干扰源和多个干扰源在不同情况下的干扰效果进行仿真,仿真结果表明,LCMV算法能有效判定信号来波方位,并对干扰信号具有一定的赋零深度;针对分析结果提出多方位逼近干扰方法,能大幅降低LCMV获取的抗干扰增益。该方法对实战中采用空域滤波抗干扰技术的GPS干扰能提供一定的参考。
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