虚拟星座伪卫星和双泄漏电缆覆盖的室内定位  

Indoor Positioning with Virtual Constellation Pseudolites and Dual Leakage Cable Coverage

作　　者：尹立华 宋茂忠[1] 徐家俊 董世茂 汤小龙 YIN Lihua;SONG Maozhong;XU Jiajun;DONG Shimao;TANG Xiaolong(College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京211106

出　　处：《测控技术》2024年第6期40-45,60,共7页Measurement & Control Technology

摘　　要：为增强室内卫星导航信号,提出了一种双泄漏电缆覆盖的虚拟星座伪卫星室内二维定位方法。采用卫星导航模拟器产生多路虚拟轨道卫星信号,同时激励相互垂直的双泄漏电缆的末端,信号沿泄漏电缆轴向传输的同时,通过外导体上的一系列槽孔向室内空间辐射卫星导航信号,使卫星导航接收机能直接定位,输出概略位置和伪距观测量,再利用卫星间伪距差的二维定位算法对接收机位置进行二次解算。通过搭建硬件系统进行实地测试,证明能达到室内伪距定位的米级精度。To enhance indoor satellite navigation signals,a virtual constellation pseudolite indoor two-dimensional positioning method with dual leakage cable coverage is proposed.A satellite navigation simulator is used to generate multiple virtual orbit satellite signals that simultaneously excite the ends of mutually perpendicular double leakage cables.The signal is transmitted along the axial direction of the leakage cable while radiating the satellite navigation signal into indoor space through a series of slots on the outer conductor,so that the satellite navigation receiver can directly locate and output approximate position and pseudorange observations.Then,the two-dimensional positioning algorithm based on the pseudorange difference between satellites is used to perform secondary calculations on the receiver position.By building a hardware system for on-site testing,it is proved that it can achieve meter-level accuracy in indoor pseudorange positioning.

关 键 词：卫星导航模拟器 双泄漏电缆 伪距 二维定位 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TN967.1[自动化与计算机技术—计算机科学与技术]