全球定位系统2024，Vol.49Issue(2)：16-22,7.DOI:10.12265/j.gnss.2023119
5G信道状态信息信号质量及指纹定位性能分析
5G channel state information signal quality and positioning performance analysis
摘要
Abstract
5G channel state information(CSI)has rich feature information,but it is greatly affected by environmental information,which directly affects the fingerprint positioning performance.In order to analyze the degree of influence of different factors on 5G signal quality and positioning performance,this paper first expounds the 5G signal characteristics and positioning algorithm based on support vector regression(SVR),analyzes the influence of terminal height,direction,human body occlusion and other factors on signal quality during data acquisition,and tests the positioning performance in three scenarios:hallway,small office and medium-sized conference room.The results show that the 5G signal is greatly affected by the surrounding environment,and the positioning accuracy of the location fingerprint localization algorithm based on 5G channel state information has positioning accuracy of 0.93 m,1.46 m and 1.94 m respectively in three scenarios,which can meet the needs of most indoor positioning applications.关键词
5G/信道状态信息(CSI)/位置指纹/室内定位/支持向量回归(SVR)Key words
5G/channel state information/location fingerprint/indoor localization/support vector re-gression分类
天文与地球科学引用本文复制引用
程振豪,李林阳,郭文卓,赖路广,赵冬青..5G信道状态信息信号质量及指纹定位性能分析[J].全球定位系统,2024,49(2):16-22,7.基金项目
国家自然科学基金(41774037,42104033) （41774037,42104033）
