摘要
从GNSS定位原理出发,总结了GNSS定位误差的来源,并以GPS为例介绍了WAAS、LAAS、JPALS、CORS、伪卫星、LOCATA等几种增强系统及独立定位系统,指出了各个系统的优缺点和仍需解决的问题以及系统的应用领域,为北斗的地基增强系统建设提供参考。
This article summed up the sources of GNSS error based on the positioning principals, and introduced the GPS ground-based augmentation systems and independent positioning systems including WAAS, LAAS, JPALS, CORS, pseudolites and Locata in the following parts. The merits and demerits of each system, the problems facing each one and the application fields are shown. All the information can be utilized for the construction of ground-based augmentation systems for Beidou navigation system.
出处
《全球定位系统》
2014年第4期26-30,共5页
Gnss World of China
