GPS信号载噪比研究  

On C/N0 of Received GPS Signal

作　　者：黄劲松[1] 刘峻宁[1] 刘成宝[1] 田辉[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2007年第5期427-430,434,共5页Geomatics and Information Science of Wuhan University

基　　金：测绘遥感信息工程国家重点实验室开放研究基金资助项目((03)0201)。

摘　　要：介绍了GPS接收机所接收信号的载噪比;提出了载噪比方向图的概念,导出了载噪比方向图与天线增益方向图的关系;初步评估了大气损耗的时空差异;指出可利用载噪比异常方向图确定被动式干扰源的方位。The C/N0 of received GPS signal is described. The concept of C/N0 pattern troduced. The relation variation and direction ship between the C/N0 pattern and gain pattern is derived. The time variation of atmospheric loss are evaluated initially. The concept of C/ N0 anomaly and the C/N0 anomaly pattern ference could be determined with the C/N0 are introduced. The orientation of passive interanomaly pattern.

关 键 词：GPS 天线增益 载噪比 栽噪比异常 方向图 

分 类 号：P228.41[天文地球—大地测量学与测量工程]