【摘要】 在基于CDMA网络的无线定位系统中,当移动终端处于多个基站的侦收范围时会面临定位基站的选择问题,基站选择的优化可以减少系统资源的占用,并且直接影响系统定位性能。文中提出采用精度因子的基站选择算法,通过实测验证具有较高的稳定性,并可提高系统的定位精度和实时性,对定位系统的基站架设和系统设计有实际的指导意义。更多还原

【Abstract】 When the mobile station locates in the detective range of several base stations in the wireless location system based on CDMA network, an issue about base station selection is put forward. The optimized base station selection can reduce the use of system resources, and influence the performance of location system directly. This paper presents an algorithm in which HDOP is applied to base station selection. The field trials show that the algorithm has higher stability, higher positioning precision and capability of real time. The algorithm can be also used to guide the layout of base station and the design of location system.更多还原