基于Chan-PF的TDOA井下人员定位算法研究  

Research on TDOA underground personnel location algorithm based on Chan-PF

作　　者：牛春祥 姚善化[1] Niu Chunxiang;Yao Shanhua(School of Electrical and Information Engineering,Anhui University of Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《无线互联科技》2024年第1期103-106,共4页Wireless Internet Technology

基　　金：安徽省高等学校省级自然科学研究重点项目,项目编号:KJ2014A066。

摘　　要：煤矿井下的复杂情况,导致在NLOS环境下,人员定位精度大幅下降,甚至得到的数据无法使用。针对此问题,文章提出一种Chan-PF融合定位算法。首先,使用Chan算法对到达时间差(TDOA)得到的测量值进行处理,获得最优解;其次,采用粒子滤波对最优解再次进行处理,最终粒子重采样后的中心位置即为目标节点的精确位置。仿真结果表明,该算法能有效地抵抗煤矿井下NLOS环境中的干扰,提高定位精度,得到较为精确的定位坐标。Due to the complex situation underground in coal mines,the accuracy of personnel positioning decreases significantly in the NLOS environment,and even the obtained data cannot be used.To address this issue,a Chan-PF fusion positioning algorithm is proposed.Firstly,the Chan algorithm is used to process the measured values of time difference of arrival(TDOA)to obtain the optimal solution.Then,particle filtering is used to process the optimal solution again,and the final center position of the resampled particles is the exact position of the target node.The simulation results show that this algorithm can effectively resist interference in the NLOS environment of coal mines underground,improve positioning accuracy,and obtain more accurate positioning coordinates.

关 键 词：井下人员定位 CHAN算法 粒子滤波 定位精度 

分 类 号：TN925[电子电信—通信与信息系统]