基于约束最优波束赋形的RIS无线定位算法  

RIS wireless positioning algorithm based on constrained optimal beamforming

作　　者：朱文杰 伏胜洋 姚雨晨 冷清 ZHU Wenjie;FU Shengyang;YAO Yuchen;LENG Qing(School of Computer and Information Engineering,Hubei Normal University,Huangshi 435002,China)

机构地区：[1]湖北师范大学计算机与信息工程学院,湖北黄石435002

出　　处：《湖北师范大学学报(自然科学版)》2025年第1期12-17,共6页Journal of Hubei Normal University:Natural Science

基　　金：国家自然科学基金(62172144);湖北省教育厅中青年人才科技项目(Q20192501);湖北师范大学人才引进项目(1000002)。

摘　　要：提出了一种基于约束最优波束赋形的智能反射面(Reconfigurable Intelligent Surface,RIS)无线定位算法,该算法利用RIS技术和波束赋形技术,结合无线信号传输的特点和场景,实现对无线信号传输的路径和抑制干扰的优化和调整,来提高无线定位的精度和成功率。针对无线通信系统传输中产生的多径效应和干扰问题,采用了基于约束最优的信号波形分解算法,以减少干扰信号的影响和优化RIS反射路径的选择。通过实验表明,提出的基于约束最优波束赋形的RIS无线定位算法具有更高的定位精度和更快的收敛速度。This paper proposes a Reflecting Intelligent Surface(RIS)wireless positioning algorithm based on constrained optimal beamforming,which,in essence,integrates RIS technology and beamforming technology to optimize and adjust the path of wireless signal transmission and suppress interference based on the characteristics and scenarios of wireless signal transmission,so as to improve the positioning accuracy and success rate of wireless positioning.In order to eliminate multipath effect and interference produced during the transmission of wireless communication system,it also adopts a signal wave form decomposition algorithm based on constraint optimization to reduce the influence of interference signal and optimize the selection of RIS reflection path.Experiment results show that the RIS wireless positioning algorithm based on constrained optimal beamforming proposed in this paper has higher positioning accuracy and faster convergence speed.

关 键 词：波束赋形 智能反射面 无线定位 无线通信系统 多径效应 

分 类 号：TN295[电子电信—物理电子学]