伪卫星增强区域卫星导航系统组网仿真

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。

Plans of Augmenting Regional Satellite Navigation Using PLs

As well known,such performances as accuracy of satellitebased 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.