摘要
分析了在基于到达时间差(TDOA)原理的地面定位系统中基站布局与定位精度的关系,给出了水平几何布局和精度因子(HDOP)的计算方法并讨论了HDOP的下界。最后针对几种不同的基站布局方案,对HDOP的分布进行了仿真,给出了一种工程中可以应用的布局方案。
This paper discusses the relationship between positioning precision and the geometric distribution of beacons in a Time Difference of Arrival (TDOA) land-based positioning system. The way of calculating the horizontal dilution of precision (HDOP) is introduced, and the lower bound of HDOP is given. The simulation results of HDOP with varied beacon distributions are given, as well as a distribution with high performance, which can be used in a practical positioning system.
出处
《电讯技术》
2005年第3期135-138,共4页
Telecommunication Engineering
