摘要
在无线定位中,信号的非视距传播成为高精度定位的主要障碍,它严重制约了移动台的定位精度。在该领域中,大多数研究都把焦点集中在NLOS的鉴别与抑制上。在基于MIMO模型下,给出一种新的定位方法。该方法可以充分利用NLOS传播路径而不是去抑制它,其定位模型由只利用2条NLOS路径扩展到利用多条NLOS路径来估计MS位置并实现单基站定位。计算机仿真结果验证了该算法的有效性。
In the field of wireless localization, the non line-of-sight（NLOS） propagation of the signal becomes the chief obstacle which restricts the high accuracy of the localization. In this domain, most of the researches focus on the distinction and suppression of NLOS. In this paper, a new localization method based on the MIMO system was proposed. This method can make full use of the NLOS path of propagation and does not need to suppress it. By only using two NLOS ways, the localization algorithm expands to use several NLOS ways to estimate the MS position with only one base station. The computer simulation results have confirmed the validity of the algorithm.
出处
《重庆邮电大学学报（自然科学版）》
北大核心
2010年第2期135-139,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
重庆市科委自然科学基金项目(CSTC
2008AC2073
CSTC
2008BB2412)
重庆市教委科技项目(KJ080520)~~
关键词
MIMO
定位
NLOS传播
multiple-input-multiple-output （MIMO）
localization
non line-of-sight （NLOS） propagation
