室内伪卫星定位系统及发射机的设计与实现  

Design and implementation of indoor pseudo-satellite positioning system and transmitter

作　　者：杨坤[1] 赵利[1] 蔡成林[1] 张宇 YANG Kun;ZHAO Li;CAI Chenglin;ZHANG Yu(School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2018年第4期259-264,共6页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61771150)

摘　　要：针对传统室内伪卫星定位系统存在的问题,设计了一种新型的室内伪卫星定位发射机系统。各个发射机作为单独的信标,通过天线将携带定位信息的扩频信号传送到标签接收机,发射机间通过同源时钟和秒脉冲信号,保证发射的严格同步,接收机端通过获取载波相位用以定位解算。测试结果表明,伪卫星发射机的设计可靠,同步精确,可灵活组网,发射功率可控,可适应不同的室内应用场景。Aiming at the existing problems of the traditional indoor pseudo-satellite positioning system,a new type of indoor pseudo-satellite positioning transmitter system is designed.Each transmitter acts as a separate beacon,transmitting the spread spectrum signal carrying the positioning information to the tag receiver via an antenna,and the strict synchronization of the transmission is guaranteed by the homologous clock and the pulse per second between the transmitters.The receiver terminal obtains the carrier phase for location calculation.The analysis and test results show that the pseudo-satellite transmitter has reliable design,accurate synchronization,flexible networking,controllable transmit power and adaptability to different indoor application scenarios.

关 键 词：伪卫星 信标 载波相位 

分 类 号：TN966[电子电信—信号与信息处理]