基于北斗短报文的无线定位系统设计  

Design of Wireless Location System Based on Beidou Short Message

作　　者：祝清华 张会新 孟凡轶 姜思如 ZHU Qinghua;ZHANG Huixin;MENG Fanyi;JIANG Siru(School of Instrument and Electronics,North University of China,Taiyuan 030051;Capital Aerospace Machinery Co.,Ltd.,Beijing 100076;Beijing Institute of Space Launch Technology,Beijing 100076)

机构地区：[1]中北大学仪器与电子学院,太原030051 [2]首都航天机械有限公司,北京100076 [3]北京航天发射技术研究所,北京100076

出　　处：《计算机与数字工程》2024年第7期1998-2002,2024,共6页Computer & Digital Engineering

摘　　要：针对飞行器回收效率低的问题,提出了一种运用全球卫星定位技术和北斗短报文通信技术设计的定位系统。系统利用北斗和GPS双模混合定位,定位信息通过北斗短报文传送至地面接收端,地面按照协议解算得到落点位置,完成落点搜寻工作。该设计以北斗模块和双SIM卡切换通信为核心,包括主控模块、电源管理模块、北斗模块及信息处理模块等,保证系统可靠性的同时,降低了系统功耗。测试结果表明,该定位系统通信成功率在95%以上,定位精度优于10 m,满足设计要求,具有良好的应用前景。Aiming at the problem of low recovery efficiency of aircraft,a positioning system designed by global satellite posi⁃tioning technology and Beidou short message communication technology is proposed.The system uses Beidou and GPS dual-mode hybrid positioning,and the positioning information is transmitted to the ground receiver through Beidou short message.The ground can obtain the location of the landing point according to the protocol solution,and the landing point search is completed.This design takes the Beidou module and dual SIM card switching communication as the core,including the main control module,power man⁃agement module,Beidou module and information processing module,etc.,to ensure the reliability of the system and reduce the power consumption of the system.The test results show that the communication success rate of the positioning system is more than 95%,and the positioning accuracy is better than 10 m,which meets the design requirements and has a good application prospect.

关 键 词：北斗导航 双模定位 短报文通信 双卡切换 

分 类 号：TN92[电子电信—通信与信息系统]