伪卫星技术发展和应用综述  

Summary of pseudolites development and its application

作　　者：岳晓奎[1] 袁建平[1] 吴琼[1] 

机构地区：[1]西北工业大学航天学院,陕西西安710072

出　　处：《全球定位系统》2005年第2期47-51,共5页Gnss World of China

摘　　要：全球导航卫星系统已经引起了测量、测地、导航和其他与定位相关的学科的革命,但是卫星导航定位系统有两个内在的弱点:信号衰减和定位结果依赖卫星的几何布局。因此在比较苛刻的观测环境下,系统的表现明显降低。伪卫星就是为了解决这个问题而引入的。本文讲述了伪卫星发展的相关历史和近来伪卫星定位方面的一些成就,并提出了现存的技术问题。Global navigation satellite systems have been revolutionizing in surveying, geodesy, navigation and other position fields. However, there are two intrinsic shortcomings in such satellite-based positioning systems: signal attenuation and dependence on the geometric distribution of the satellites. Consequently, the system performance can decrease significantly under some harsh observing conditions. To tackle this problem, using of pseudo-satellites has been developed. In this paper, the history of pseudolite development and recent progress in pseudolite-based positioning are reviewed, meanwhile, its current technical issues are discussed.

关 键 词：卫星导航 伪卫星 增强GPS 单独定位 组合导航 

分 类 号：P228.4[天文地球—大地测量学与测量工程]