伪卫星增强区域卫星导航系统组网仿真  

Plans of Augmenting Regional Satellite Navigation Using PLs

作　　者：孟键[1] 孙付平[1] 丛佃伟[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘科学技术学报》2008年第3期213-215,共3页Journal of Geomatics Science and Technology

摘　　要：卫星定位导航系统的精度等性能,很大程度上依赖于卫星数目和几何布局,而DOP值正是衡量定位卫星几何布局优劣的一个量度。从DOP值的角度研究了不同伪卫星位置布局及数目对增强区域卫星导航系统定位精度的影响,为合理布设伪卫星以进一步提高其导航性能提供了有力的参考依据。As well known, such performances as accuracy of satellite - based positioning system are heavily dependent on the number and geometric distribution of satellites being tracked, and DOP is a right measure of the geometry of the constellation. Therefore in the paper, the impacts of various locations and geometries of pseudolites on the accuracy of the augmented system were comprehensively investigated based on DOP, and the conclusions obtained were the useful references for configuring PLs rationally as to improve further the performances of the system.

关 键 词：伪卫星 区域卫星导航系统 几何布局 DOP 

分 类 号：P228[天文地球—大地测量学与测量工程]