极化对GPS干扰效果影响分析

为获得良好的GPS干扰效果,干扰信号应与GPS接收机天线极化方式相匹配。首先用腔模理论分析了GPS接收机圆极化微带天线各个方向上的场结构,推导出其侧面的极化特性。对干扰信号从不同方向进入GPS接收机天线的干扰效果进行了分析。在此基础上利用镜像原理分析了GPS接收机天线载体对不同极化方式的干扰信号影响。通过试验结果证实了上述分析。最终给出合理的干扰天线极化方式。

Analysis on Influence of Polarization on GPS Jamming Effectiveness

For acquiring the good effect of GPS jamming,the polarized manner of the jamming signals and the GPS receiver antenna should be matched.The paper analyzes the field structure of the microstrip antenna of GPS receiver with cavity model theory,and deduces the polarized properties of its profile.It analyzes the jamming effect,that the jamming signals from different directions reach GPS receiver antenna.Based on these results and the image theory,the influences of the carriers on different polarized jamming sig...