面向无网环境的上行下达时差定位技术研究  

Research on Uplink and Downlink Time Difference Location Technology for Wireless Environment

作　　者：王瀛 边德兴 吕旺 WANG Ying;BIAN Dexing;LU Wang(Tianjin Richsoft Electric Power Information Technology Co.,Ltd.,Tianjin 300308)

机构地区：[1]天津市普迅电力信息技术有限公司,天津300308

出　　处：《微型电脑应用》2025年第1期205-208,共4页Microcomputer Applications

摘　　要：在智能道路网络化建设中,无线环境无网情况下的车路精准定位是一个挑战。提出一种针对无网环境的上行下达时差定位技术。探讨基于差分上行时间差的定位技术,融合查恩算法和泰勒级数算法进行噪声精确定位研究,从而在无网环境下精准定位车辆的全局位置。结果表明,最大距离误差从10.136 m降低到2.384 m,距离均方差从3.494降低到0.472,定位时间从0.5 s增加到1.3 s。验证了所提定位技术在各项指标上都是最优的,提高了车辆定位的准确性。In the construction of intelligent road networking,precise positioning of vehicles and roads in wireless environments without networks is a challenge.A method is proposed by using uplink and downlink time difference positioning technology for networkless environments.The positioning technology based on differential uplink time difference is explored.The Chan algorithm and Taylor series algorithm are integrated for noise precise positioning research,in order to accurately locate the global position of vehicles in a networkless environment.The results show that the maximum distance error decreases from 10.136 m to 2.384 m,the range mean square error decreases from 3.494 to 0.472,and the positioning time increases from 0.5 s to 1.3 s.It verifies that the positioning technology is optimal in all indicators,and the accuracy of vehicle positioning is improved.

关 键 词：车辆定位 DL-TDOA定位算法 上行下达 时差定位 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]