一种监测站多径检测和校正的新技术研究  

A Research of Multipath Detection and Calibration Method for Ground Monitoring Station

作　　者：杨毅 甘兴利 

机构地区：[1]远东华强导航定位有限公司,河北石家庄050200 [2]河北省卫星导航技术与装备工程技术研究中心,河北石家庄050081

出　　处：《无线电工程》2013年第7期27-29,共3页Radio Engineering

摘　　要：监测站是卫星导航系统的核心部分,提供给主控站的原始测量数据精度决定着整个导航系统的定轨与时间同步精度,影响着系统的服务性能。多径和天线相位中心的变化是监测站高精度测距不可忽略的影响因素。采用一套基于高增益、抗多径面天线的多径检测和校正系统,定量地评估监测站的多径环境,并对接收机天线的相位中心和多径进行校正。通过多径检测与校正原型设施,开展阵列天线相心标校、多径检测与标校等试验,为监测站的天线相心与多径环境检测、抑制和校正提供一个完整的解决方案。Ground monitoring station is a core component of the satellite navigation system. It provides master station the original measurement data whose precision determines the orbiting and time synchronization accuracy,thus affects the service quality of the system. Multipath and variation of antenna phase center are non-negligible effects for the high precision ranging of the station,because of that,in this paper, a muhipath detection and correction system based on a high-gain, anti-multipath antenna is introduced, which quantitatively assesses the multipath environment around the station and performs the corrections to the antenna phase center of the receiver and multipath. Finally,by going through the procedures of multipath detection, correction of prototype establishments and calibration of array antennas,it provides a complete resolution to the calibration of antenna phase center and multipath detection ＆ mitigation of the station.

关 键 词：卫星导航系统 监测站 多径环境 检测校正 

分 类 号：P228.4[天文地球—大地测量学与测量工程]