GPS信号载噪比研究

基金项目: 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)。

详细信息

On C/N0 of Received GPS Signal

¹ School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

Funds: 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。
- GPS /
- 天线增益 /
- 载噪比 /
- 载噪比异常 /
- 方向图
Abstract: The C/N0 of received GPS signal is described. The concept of C/N0 pattern is introduced. The relationship between the C/N0 pattern and gain pattern is derived. The time variation and direction variation of atmospheric loss are evaluated initially. The concept of C/N0 anomaly and the C/N0 anomaly pattern are introduced. The orientation of passive interference could be determined with the C/N0 anomaly pattern.
- GPS /
- antenna gain /
- C/N0 /
- C/N0 anomaly /
- pattern