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不同信道环境下非视距误差鉴别方法性能仿真

发表时间:2013-11-30  浏览量:1189  下载量:540
全部作者: 周微,王琦琦,吴虹,章辉
作者单位: 南开大学电子信息与光学工程学院
摘 要: 在无线定位系统中,非视距(non-line of sight,NLOS)误差是整个定位系统的主要误差来源之一,目前对NLOS误差的检测方法存在诸多不足和限制。针对这些不足,通过分析不同信道下NLOS误差的概率分布特点,提出一种无需基站支持也不需要当地视距(line of sight,LOS)环境下先验知识的NLOS误差鉴别方法,并对这种方法在不同信道环境下的检验效果进行仿真验证。仿真结果表明:该方法对不同信道下的NLOS误差都能够有效、实时地进行鉴别。
关 键 词: 无线通信技术;非视距误差分布;非视距误差鉴别;信道环境;鉴别性能仿真
Title: Simulations of the NLOS error identification method under different channel environments
Author: ZHOU Wei, WANG Qiqi, WU Hong, ZHANG Hui
Organization: College of Electronic Information and Optical Engineering, Nankai University
Abstract: In the wireless positioning system, non-line of sight (NLOS) error is one of the main errors� sources. The existing NLOS error identification methods have many shortcomings and limitations. In order to make up for the lack of the existing NLOS error identification methods, this paper analyzed the NLOS error probability distributions under different channel environments. A new NLOS error identification method was proposed. The method needs neither the base stations nor the line of sight (LOS) distribution historical information. The paper made simulations for the method. The results showed that the method can identify NLOS errors accurately and instantaneously in different channel environments.
Key words: wireless communication technology; non-line of sight error distribution; non-line of sight error identification; channel environments; identification performance simulation
发表期数: 2013年11月第22期
引用格式: 周微,王琦琦,吴虹,等. 不同信道环境下非视距误差鉴别方法性能仿真[J]. 中国科技论文在线精品论文,2013,6(22):2147-2152.
 
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