基于分布式MIMO网络的室内终端单站定位技术

doi:10.11959/j.issn.1000-436x.2023237

通信学报 ›› 2023, Vol. 44 ›› Issue (12): 193-205.doi: 10.11959/j.issn.1000-436x.2023237

• 学术论文 • 上一篇

基于分布式MIMO网络的室内终端单站定位技术

李泽¹, 邹建², 黄曾², 田增山²

¹ 重庆邮电大学工业物联网与网络化控制教育部重点实验室，重庆 400065
² 重庆邮电大学通信与信息工程学院，重庆 400065

修回日期:2023-09-15 出版日期:2023-12-01 发布日期:2023-12-01
作者简介:李泽（1991- ），男，安徽淮南人，博士，重庆邮电大学讲师，主要研究方向为无线定位与感知
邹建（1998- ），女，重庆人，重庆邮电大学硕士生，主要研究方向为毫米波定位
黄曾（1997- ），男，重庆人，重庆邮电大学硕士生，主要研究方向为Wi-Fi定位
田增山（1968- ），男，河南固始人，博士，重庆邮电大学教授、博士生导师，主要研究方向为无线定位与导航、无线智能感知、多域超分辨信号处理、毫米波/太赫兹雷达及通信技术
基金资助:
国家自然科学基金资助项目(92267106);重庆市自然科学基金博士后科学基金资助项目(CSTB2023NSCQ-BHX0160)

Indoor terminal localization technology using a single access point based on distributed MIMO networks

Ze LI¹, Jian ZOU², Zeng HUANG², Zengshan TIAN²

¹ Key Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
² School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Revised:2023-09-15 Online:2023-12-01 Published:2023-12-01
Supported by:
The National Natural Science Foundation of China(92267106);The Natural Science Foundation-Postdoctoral Science Foundation Project of Chongqing(CSTB2023NSCQ-BHX0160)

摘要/Abstract

摘要：

针对分布式MIMO网络中的终端定位问题，提出了基于分布式MIMO网络的室内终端单站定位系统。首先，将接入点天线布置在室内不同的位置，并利用压缩感知算法对终端每个天线上接收路径的离开角（AoD）和飞行时间（ToF）进行估计；其次，联合多个路径的 AoD 和 ToF 建立非线性定位模型，并利用一种改进的Levenberg-Marquardt算法进行求解；再次，理论分析了定位误差的影响因素以及给出了天线布局的理论依据；最后，利用电磁仿真软件和软件无线电平台进行了仿真和实测验证，仿真和实测结果表明，所提定位系统的性能优于现有基于自然多径辅助的单站定位系统。

关键词: 室内定位, 离开角, 飞行时间, 分布式MIMO

Abstract:

Regarding the terminal localization in distributed MIMO networks, an indoor terminal localization system using a single access point (AP) based on distributed MIMO networks was proposed.Firstly, the AP’s antennas were arranged at different locations in the room, and the compressed sensing algorithm was used to estimate the angle of departure (AoD) and time of flight (ToF) of the receiving path on each antenna of the terminal device.Secondly, AoDs and ToFs of multiple paths were combined to establish a nonlinear localization model, and an improved Levenberg-Marquardt algorithm was used to solve the problem.Then, theoretical analysis has been examined for the factors that influence the localization error, and the criteria for the antenna layout was provided.Finally, electromagnetic simulation software was used to build simulation environment and conducted the simulation for system verification.Moreover, software-defined radio platforms were used to conduct practical tests.Both simulation and experimental results indicate that the performance of the proposed localization system is superior to existing single-AP localization systems based on natural multipath.

Key words: indoor localization, angle of departure, time of flight, distributed MIMO

中图分类号:

TN92

李泽, 邹建, 黄曾, 田增山. 基于分布式MIMO网络的室内终端单站定位技术[J]. 通信学报, 2023, 44(12): 193-205.

Ze LI, Jian ZOU, Zeng HUANG, Zengshan TIAN. Indoor terminal localization technology using a single access point based on distributed MIMO networks[J]. Journal on Communications, 2023, 44(12): 193-205.

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基于分布式MIMO网络的室内终端单站定位技术

Indoor terminal localization technology using a single access point based on distributed MIMO networks

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