电讯技术
電訊技術
전신기술
TELECOMMUNICATIONS ENGINEERING
2009年
7期
45-48
,共4页
全球定位系统%接收机天线%功率倒置算法%抗干扰%智能天线
全毬定位繫統%接收機天線%功率倒置算法%抗榦擾%智能天線
전구정위계통%접수궤천선%공솔도치산법%항간우%지능천선
GPS%receiver antenna%power - inversion arithmetic%anti - interference%smart antenna
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接收機天線易受其它射頻信號榦擾,傳統的做法已不能滿足高精度用戶的需求.為瞭提高導航定位精度,在GPS天線抗榦擾設計中引入瞭功率倒置算法.功率倒置算法具備在不明確榦擾信號相關揹景的情況下能夠有效抑製榦擾,據此設計瞭採用功率倒置算法的GPS天線接收模型,併對半物理實物進行瞭相關倣真,取得瞭較好測量精度.
GPS접수궤천선역수기타사빈신호간우,전통적주법이불능만족고정도용호적수구.위료제고도항정위정도,재GPS천선항간우설계중인입료공솔도치산법.공솔도치산법구비재불명학간우신호상관배경적정황하능구유효억제간우,거차설계료채용공솔도치산법적GPS천선접수모형,병대반물리실물진행료상관방진,취득료교호측량정도.
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.