摘要
非视距传播(NLOS)误差是影响各种蜂窝网络定位精度的主要原因.通过计算波达时间(TOA)和波达角(AOA)相对于移动台(MS)参考位置的残差来对NLOS误差进行鉴别,找出含有NLOS的基站.然后利用所得到的关于NLOS的信息,对算法进行加权处理.仿真实验表明,该算法有效的降低了NLOS的影响,可以得到更好的位置估计结果.
Non-Line-of-Sight (NLOS) error is the key reason that affects cellular network location precision. In this paper, we identify NLOS propagation errors by computing TOA and AOA measurements residual for mobile station (MS) reference location and find base station (BS) containing NLOS errors information. Then we use the information about NLOS errors and propose a method to add weight. This method decreases the effect of NLOS propagation efficiently and gains better location estimation. In addition, the performance of the proposed method is evaluated through simulations.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2007年第1期85-88,共4页
Journal of Harbin Institute of Technology
基金
全国优秀博士学位论文作者专项基金资助项目(200037)
高等学校优秀青年教师教学科研奖励计划资助项目(2001-226)