A TOA Reconstruction Method Based on Ring of Scatterers Model
In non-line-of-sight propagation (NLOS) environment, the time of arrival (TOA) measurement is biased by a positive NLOS noise, causing mobile location errors. In order to mitigate the NLOS influence on the location accuracy, a new method is proposed in this paper. By discussing the probability density function (pdf) of NLOS error based on ring of scatterers model, a TOA reconstruction method is introduced. By using this method, the influence of the NLOS error can be reduced to some extent, which is demonstrated by simulation under different channel environments. Compared with the conventional LS algorithms, it is shown that the proposed method can significantly improve the location accuracy under bad channel environments.
TOA reconstruction NLOS ring of scatterers model wireless location
Lin Liu Ping Deng Pingzhi Fan
Institute of Mobile Communications,Southwest JiaoTong University, Chengdu, 610031, China
国际会议
成都
英文
375-377
2003-08-27（万方平台首次上网日期，不代表论文的发表时间）