复杂地形条件下多AIRS辅助角度域AoA定位方法  

Multi-AIRS Assisted AoA Localization in Angle Domain Under Complex Terrain Conditions

作　　者：于莹 许魁 夏晓晨 周涛 李博扬 李海泉 YU Ying;XU Kui;XIA Xiaochen;ZHOU Tao;LI Boyang;LI Haiquan(Army Engineering University of PLA,Nanjing Jiangsu 210007,China)

机构地区：[1]中国人民解放军陆军工程大学,江苏南京210007

出　　处：《通信技术》2022年第6期740-746,共7页Communications Technology

基　　金：国家自然科学基金项目(62071485,61901519,62001513)。

摘　　要：作为6G通信的一项关键技术,智能反射面(Intelligent Reflecting Surface,IRS)在增强覆盖、降低能耗及部署成本方面,为业界提供了一种新的解决方案。近年来,IRS已成为业界的研究热点之一。为了适应6G通信定位一体化的需求,在辅助无线通信的同时利用IRS进行目标点定位成为新兴热点研究方向之一。研究复杂地形条件下多空域IRS(Aerial IRS,AIRS)辅助的角度域Ao A定位,针对不同信道条件下级联信道角度域特性,提出了一种基于DFT变换的多AIRS择优算法,在复杂地形条件下选择最优的AIRS定位目标点,从而进一步提高定位精度。仿真实验结果表明,在复杂地形条件下所提出的算法可以进一步提升定位精度。As a key technology of 6G communication,the IRS(Intelligent Reflecting Surface) offers the industry a new solution to enhance coverage,reduce power consumption and deployment costs.In recent years,IRS becomes one of the research hotspots in the industry.In order to meet the requirements of the integration of 6G communication and positioning,using IRS to locate target points while assisting wireless communication has become one of the emerging hot research issues.In this paper,the angular domain AoA localization assisted by multi-aerial IRS(AIRS) under complex terrain conditions is studied.Aiming at the angular domain characteristics of sub-channels under different channel conditions,a multi-AIRS selection algorithm based on DFT is proposed.It selects the optimal AIRS location target points under complex terrain conditions,so as to further improve the location accuracy.Simulation results indicate that the proposed algorithm can further improve the location accuracy under complex terrain conditions.

关 键 词：6G 无线定位 智能反射面 多空域智能反射面选择 AoA定位方法 

分 类 号：TN929.5[电子电信—通信与信息系统]