基站非水平面性对定位误差的影响

Influence of non-horizontal nature of base station on location error

在蜂窝无线网络中,定位技术的误差包括很多方面,其中基站间的非水平面性也是引起定位误差的因素之一。主要针对该误差因素,分别对TOA,TDOA和AOA算法分析了基站之间非水平面性对定位误差的影响。通过仿真比较得出:在采用TDOA算法时,基站之间非水平面性对定位误差影响最大,并且随着基站间距离的减小,该影响逐渐增大。提出了相应的措施以便削弱它对定位误差的影响。

In the cellular wireless network, there are many errors in location technology, and base stations stand in non-horizontal plane is one of them. This paper mainly discusses the location error influenced by non-horizontal nature of base stations based on TOA, TDOA and AOA algorithms. Simulation results show that base stations stand in non-horizontal plane mostly influenced by TDOA arithmetic, and the influence will becomes more serious when base stations close. The paper gives out solutions to weaken error influence of base stations stand in non-horizontal plane on location error.