摘要
北斗双星定位系统是我国自行建立起来的一种区域性定位系统,本文论述了双星定位导航系统存在的缺点,针对双星系统的有源定位方式,提出了利用差分技术和伪卫星对双星系统进行改进,使其实现无源定位的方法,并能达到一定的定位精度,改进之后用户不必向地面监控站发送请求信号,直接接收信号就可以实现无源定位。通过理论分析和仿真表明,采用该方法可以实现无源定位,并且定位精度可以达到一般的导航要求,所以该方法可行,为发展我国的卫星定位导航系统提供了一种新的思路。
＂Beidou＂Double-star positioning system is a regional positioning system established by our country. Considering the defects exists in double-star navigation system and its active feature, we propose an improved passive positioning by using differential technology and psedudolites, by which the user can get the positioning information directly without sending any signal. Both theoretical analysis and simulation show that the precise of this passive position system can satisfy the general navigation needs and it provide a new approach for satellite navigation system of our county.
出处
《电子测量技术》
2007年第9期153-156,共4页
Electronic Measurement Technology
关键词
双星定位系统
伪卫星
差分技术
仿真
dual satellite positioning system~ psedudolites
differential technology
simulation
