基于MIMO UWB通信系统AOA估计的算法仿真优化研究  

Research on Algorithm Simulation and Optimization of AOA Estimation Based on MIMO UWB Communication System

作　　者：张鲲 沈重[1,2] 周晖 ZHANG Kun;SHEN Chong;ZHOU Hui(Nanjing Institute of Cooperative Positioning and Navigation,Nanjing,210019,China;State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan University,Haikou,570228,China)

机构地区：[1]南京协同定位与导航研究院有限公司,江苏南京210019 [2]南海海洋资源利用国家重点实验室,海南大学,海南海口570228

出　　处：《软件》2020年第8期205-208,216,共5页Software

基　　金：2019年海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(No.2019RC236);2019年海南省高等学校科学研究项目(Hnky2019ZD-35)。

摘　　要：UWB技术的应用无论是在国内还是国外主要还是用于定位系统。与常规的无线通信技术相比,UWB还具有容量大、速率高、功率低等突出优点,UWB信号在数据传输性能方面也有着很大的优势。本文提出了一种在UWB MIMO系统中结合AOA估计的方法,先对标签位置进行定位,然后位置信息同其他检测数据一起打包发送到基站,有利于实现在数据传输过程中还能够对数据发送的位置进行实时精准定位的功能。采用MIMO技术对于系统来说可以提高频谱效率,改善系统性能,AOA估计方面利用多天线可以实现精确的定位精度。The application of UWB technology is mainly used in positioning system both at home and abroad.Compared with conventional wireless communication technology,UWB also has outstanding advantages such as large capacity,high speed and low power,and UWB signal also has great advantages in data transmission performance.In this paper,a method of combining AOA estimation in UWB MIMO system is proposed,which first locates the location of the tag,and then the location information is packaged and sent to the base station together with other detection data,which is beneficial to realize the function of real-time accurate positioning of the location of data transmission in the process of data transmission.The use of MIMO technology for the system can improve the spectrum efficiency and improve the system performance.In the aspect of AOA estimation,multiple antennas can be used to achieve accurate positioning accuracy.

关 键 词：UWB AOA估计 MIMO技术 数据传输 

分 类 号：TN911.23[电子电信—通信与信息系统]