通信学报 ›› 2021, Vol. 42 ›› Issue (5): 63-74.doi: 10.11959/j.issn.1000-436x.2021070

• 学术论文 • 上一篇    

基于散射体信息的室内NLOS多站协作定位算法

谢良波, 李升, 周牧, 李泽, 田增山, 王亚, 付长友   

  1. 重庆邮电大学通信与信息工程学院,重庆 400065
  • 修回日期:2021-03-12 出版日期:2021-05-01 发布日期:2021-05-01
  • 作者简介:谢良波(1986- ),男,四川成都人,博士,重庆邮电大学副教授、硕士生导师,主要研究方向为射频识别技术、室内定位技术等
    李升(1996- ),男,湖南娄底人,重庆邮电大学硕士生,主要研究方向为无线定位
    周牧(1984- ),男,重庆人,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、参数估计、机器学习等
    李泽(1991- ),男,安徽淮南人,重庆邮电大学博士生,主要研究方向为无线定位
    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,主要研究方向为蜂窝网无线定位、数据压缩、数据融合等
    王亚(1995- ),女,河南周口人,重庆邮电大学硕士生,主要研究方向为无线定位
    付长友(1995- ),男,河南固始人,重庆邮电大学硕士生,主要研究方向为无线定位
  • 基金资助:
    国家自然科学基金资助项目(61704015);国家自然科学基金资助项目(61771083);重庆市自然科学基金资助项目(cstc2019jcyj-msxmX0108);重庆市自然科学基金资助项目(cstc2020jcyj-msxmX0842);重庆市教委科学技术研究基金资助项目(KJZD-K202000605);重庆市教委科学技术研究基金资助项目(KJQN202000630)

Scatterer information based indoor NLOS multiple base station cooperative localization algorithm

Liangbo XIE, Sheng LI, Mu ZHOU, Ze LI, Zengshan TIAN, Ya WANG, Changyou FU   

  1. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Revised:2021-03-12 Online:2021-05-01 Published:2021-05-01
  • Supported by:
    The National Natural Science Foundation of China(61704015);The National Natural Science Foundation of China(61771083);The Natural Science Foundation of Chongqing(cstc2019jcyj-msxmX0108);The Natural Science Foundation of Chongqing(cstc2020jcyj-msxmX0842);Science and Technology Research Program of Chongqing Munic-ipal Education Commission(KJZD-K202000605);Science and Technology Research Program of Chongqing Munic-ipal Education Commission(KJQN202000630)

摘要:

针对现有视距(LOS)定位方法在非视距(NLOS)环境中定位精度急剧恶化的问题,提出一种基于散射体信息的室内NLOS多站协作定位算法,可在完全没有LOS路径的情况下进行定位。首先,利用多AP以及联合场景先验信息协同确定目标NLOS区域和散射体模糊区域;其次,根据信号的到达角对散射体区域进行约束,并在区域内搜索散射体的位置信息;然后,利用这些信息构造基于差分飞行时间的误差最小化方程;最后,提出混合使用遗传算法和列文伯格马夸尔特算法求解目标方程。仿真及真实环境模拟测试结果显示,所提算法仅通过NLOS路径即可定位目标。

关键词: 室内定位, 非视距, 多站, 散射体

Abstract:

In indoor environments, the localization accuracy of existing line of sight (LOS) solutions will deteriorate severely in non-line-of-sight (NLOS) environment.In order to solve this problem, an scatterer information based indoor NLOS multiple base stations cooperative localization algorithm was proposed, which could realize localization when no LOS path was available.Firstly, the target NLOS area and scatterer blur area were collaboratively determined through multiple AP and joint scene prior information.Secondly, the areas of scatterer were further constrained according to the angle of arrival.Then, an error minimization equation based on the differential time of flight was established by employing angle, scatterer and time.Finally, a hybrid algorithm using genetic algorithm and Levenberg Marquardt algorithm was proposed to solve the objective equation.Simulation and measurement results show that the proposed algorithm can localize the target with only NLOS paths.

Key words: indoor localization, non-line-of-sight, multiple base station, scatterer

中图分类号: 

No Suggested Reading articles found!