电波科学学报2012，Vol.27Issue(6)：1249-1255,7.
码分多址定位中时延配对及非视距误差抑制
Delay matching and NLOS error mitigation in CDMA wireless location systems
摘要
Abstract
In CDMA wireless location systems, the incorrect delay matching and the non-line-of-sight (NLOS) error seriously limit the localization performance. Due to the difference between the PN-offset of two different bases is the integer multiple of 64 chips, a shifted matching method is presented to match the delay parameters with the base station. In order to mitigate the NLOS error, a function based on the assumed NLOS bases is proposed, and the target location can be obtained by weighted average of the function. Computer simulations are given to illustrate the effectiveness of the proposed method. Furthermore, if the number of the NLOS bases detected by the proposed function is relatively small, the location accuracy can be better improved by using the Taylor series expansion.关键词
CDMA/目标定位/时延配对/NLOS误差Key words
CDMA/target location/delay matching/non line-of-sight error分类
信息技术与安全科学引用本文复制引用
邓冬虎,张群,林永照,柏鹏,高昭昭..码分多址定位中时延配对及非视距误差抑制[J].电波科学学报,2012,27(6):1249-1255,7.基金项目
基金项目：国家自然科学基金 （）
陕西省电子信息系统综合集成重点实验室基金 （）
信息综合控制重点实验室项目资助 （）
