GPS软件接收机结构及特性分析  

Structural and Property Analysis of GPS Software Receivers

作　　者：王新龙[1] 于洁[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100191

出　　处：《航空兵器》2014年第4期18-22,共5页Aero Weaponry

基　　金：国家自然科学基金资助项目(61074157);航空科学基金资助项目(20090151004)

摘　　要：针对GPS应用范围的不断扩大及性能要求的不断提高,在对GPS软件接收机原理及常规GPS接收机结构介绍的基础上,研究了三种具有代表性的新型GPS软件接收机结构:基于滤波估计的GPS接收机、基于矢量跟踪的GPS接收机和SINS/GPS深组合接收机,并分别对不同结构接收机的性能、特点及其在高动态、低载噪比环境下应用时的适用性进行了深入剖析;最后,结合各GPS接收机的结构特点给出了结论性意见。Based on the application scope expansion and improvement performance requirements for GPS, the principle of the software GPS receiver and the structural of conventional software GPS receivers are analyzed.Then, three kinds of novel representative structure of GPS receiver are studied .Based on the filtering estimate of GPS receiver , vector-based tracking receiver and the SINS /GPS deep integrated receiver, and the performance, characteristics, and the applicability of the receivers are detailed dis-cussed in the dynamic environment .In the end, according as the structure characteristics of variety GPS receivers, the conclusions are given .

关 键 词：载噪比 伪码相位 载波频率 矢量跟踪 

分 类 号：TN967.2[电子电信—信号与信息处理]