基于多信号分类-改进早晚功率锁相环的5G机会信号定位算法  

5G opportunity signal localization algorithm based on multiple signals classification and improved early-late power-based phase-locked loop

作　　者：田京鹭 孙骞 简鑫[1,2] 李一兵 陈浩[3] TIAN Jinglu;SUN Qian;JIAN Xin;LI Yibing;CHEN Hao(College of Information and Communication,Harbin Engineering University,Harbin 150001,China;Key Laboratory of Advanced Marine Communication and Information Technology,Harbin Engineering University,Harbin 150001,China;Wuhan Maritime Communication Research Institute,Wuhan 430010,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学先进船舶通信与信息技术重点实验室,黑龙江哈尔滨150001 [3]武汉船舶通信研究所,湖北武汉430010

出　　处：《应用科技》2024年第4期136-144,共9页Applied Science and Technology

基　　金：国家自然科学基金项目(52271311).

摘　　要：随着5G技术的不断发展,5G蜂窝网络已被广泛应用于城市地区。然而,基于5G的机会信号定位技术中存在着测距精度不高的问题。针对此问题,提出一种改进型5G机会信号定位算法,该算法将多信号分类(multiple signal classification,MUSIC)算法与改进的早-晚功率锁相环(phase-locked loop,PLL)结合,不仅简化了锁相环结构,更保证了测距精度;同时搭建了基于5G机会信号定位的原理样机,并对改进算法方法的有效性和可行性进行了验证,试验结果表明伪距均方误差为3.03 m。本文所提出的算法不仅结构简单、系统稳定,而且在测距精度上也有一定的优势。With the continuous development of 5G technology,the 5G cellular network has been widely used in urban areas.However,there exists a problem of low ranging accuracy in the opportunistic signal positioning technology based on 5G.To solve this problem,an improved 5G opportunity signal location algorithm is presented in this paper.The algorithm combines multiple signals classification(MUSIC)algorithm with an improved early-late power-based phase-locked loop(PLL)structure,which not only simplifies the PLL structure,but also ensures the accuracy of ranging.A prototype based on 5G opportunity signal positioning principle was built to verify effectiveness and feasibility of the improved algorithm.The test results showed that the pseudo-distance mean square error was 3.03 meters.The algorithm proposed in this paper is not only simple in structure and stable in system,but also has certain advantage in ranging accuracy.

关 键 词：行人导航定位 室外定位 5G机会信号 帧结构 到达时间估计 多信号分类算法 早-晚功率锁相环 延迟锁相环 

分 类 号：TN914.34[电子电信—通信与信息系统]