双极性天线室内多路径探测与分析

Detection and analysis of indoor multipath using a dual polarized antenna

为了进一步研究室内多路径效应的影响,介绍了GNSS反射信号的偏振特性,提出在伪卫星定位系统中利用双极性天线检测多路径的方法。实验证明,通过信号极化特性的判断是区分直接信号和反射信号的有效方法,利用该方法能够在室内不同环境下探测分析出复杂的多路径效应影响的大小,有助于检测多路径干扰。

In order to further study on the effects of indoor muhipath, the paper introduced the polarization characteristics of GNSS reflected signals, and then proposed the method of using a dual polarized antenna to detect the muhipath in pseudolite positioning systems. Experimental result showed that the determination of signal polarization characteristics could be an effective way to distinguish between direct and reflected signals, and the proposed method could be used to detect and analyze the complex muhi path effects under different indoor environments, which would help reduce the multi-path interference.