GPS/Galileo双模接收机定位精度分析与仿真测试研究  

Research on the Positioning Accuracy and Simulation Test of GPS/Galileo Dual-mode Receiver

作　　者：赵静[1,2] 蔚保国[3] 李隽[3] 

机构地区：[1]北京师范大学资源学院,北京100875 [2]国家遥感中心,北京100036 [3]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《遥感信息》2010年第6期63-66,共4页Remote Sensing Information

摘　　要：多模卫星导航接收机比单一的卫星导航接收机在可用性和DOP值都有极大改善,但同时双系统之间的互干扰使接收信号的信噪比降低。本文对多模接收机定位精度的改善程度进行了定量分析,并进行了仿真测试验证,研究结果表明:相比单一导航模式,GPS/Galileo双模组合会造成期望信号的载噪比下降,测距误差增大,但它与DOP值的改善定位精度相比影响很小,因此,多模式工作方式下导航接收机的定位精度会有很大提高。Compared with single-mode receiver,the availability and DOP of multi-mode receiver are improved greatly.However,the SNR of the received signal will be decreased because of the Multi-interference between GPS and Galileo.The improved positioning accuracy of multi-mode receiver is analyzed quantitatively by the simulation test in the paper.And the results show that：Using multi-mode receiver of GPS and Galileo,the positioning accuracy is improved,although the expected C/No is decreased and the ranging error is increased,because of a better DOP than one of a single-mode receiver.

关 键 词：GPS GALILEO 双模接收机 定位精度 DOP 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]