北斗局域差分定位技术

针对北斗双星定位系统的有源定位方式,提出了北斗三星无源定位技术,但是北斗三星无源定位的精度不高,难以满足某些用户的要求。为此,借鉴GPS差分定位,介绍了一种可提高北斗无源定位精度的北斗局域差分技术,包括工作原理、被采用的原因和使用条件等。最后详细阐述了研制北斗无源局域差分定位设备的作用和意义。

Local Area Differential Positioning Technique of Beidou

Compared to the active positioning mode of the Beidou, a passive positioning technique based on the three geostationary satellites of Beidou is presented. Since positioning accuracy of the passive positioning technique based on the three geostationary satellites of Beidou can not satisfy the demands of some users,a technique using DGPS positioning and based on the Beidou local area differential positioning that can improve positioning accuracy is presented, including the principles,the considerations of choosing this scheme, and the conditions in use and so on. Finally,the effects and significance of developing the equipment with the Beidou local area differential passive positioning are elaborated particularly.