摘要
GPS接收机天线易受其它射频信号干扰,传统的做法已不能满足高精度用户的需求。为了提高导航定位精度,在GPS天线抗干扰设计中引入了功率倒置算法。功率倒置算法具备在不明确干扰信号相关背景的情况下能够有效抑制干扰,据此设计了采用功率倒置算法的GPS天线接收模型,并对半物理实物进行了相关仿真,取得了较好测量精度。
GPS receiver antenna is liable to be interfered by other radio frequency signals, and traditional methods can not meet the high precision requirement of users. In order to improve the precision of naviga- tion and positioning, power inversion （PI） arithmetic is introduced in anti - interference design of GPS re- ceiver antenna. The PI arithmetic can effectively suppress interferences under the condition of uncertain background of interfering signals. On this base, a GPS antenna receiving model is designed by using PI a- rithmetic, and the bat -physical model is constructed and simulated, and higher precision is obtained.
出处
《电讯技术》
北大核心
2009年第7期45-48,共4页
Telecommunication Engineering
