基于北斗/GPS双模模块的高可靠定位系统设计  

Design of Highly Reliable Positioning System Based on Beidou/GPS Dual Mode Module

作　　者：刘家龙 吴柯锐 张会新[1] 康长盛 LIU Jialong;WU Kerui;ZHANG Huixin;KANG Changsheng(Key Laboratory of Micro nano Devices and Systems,Ministry of Education,North University of China,North University of China,Taiyuan 030051,China;THE PLA Unit 93160,Beijing 100076,China)

机构地区：[1]中北大学微纳器件与系统教育部重点实验室,太原030051 [2]中国人民解放军93160部队,北京100076

出　　处：《航天控制》2024年第4期35-41,共7页Aerospace Control

摘　　要：针对飞行器在飞行试验结束后部分重要结构的定位及可靠回收的问题,设计了一种基于北斗/GPS双模模块的高可靠定位系统。系统采用集成了GPS/RNSS(Radio navigation satellite system)模块和RDSS(Radio determination satellite system)模块的BDM910模块为核心的定位装置,通过双链路及四天线互为冗余来接收北斗导航卫星系统(Beidou navigation satellite system,BDS)频点和GPS频点导航电文,在捕获有效卫星导航信号的同时,实时解算自身位置信息,并将位置信息以北斗短报文形式实时发送给搜寻装置,最终确定飞行器的落点坐标。该系统解决了在复杂环境下,飞行试验中相关重要结构的定位回收问题。此定位系统有实时解析定位数据和定位装置通信信息的能力,数据解析率小于5 s,定位精度在10 m以内,通信成功率在95%以上,系统持续工作时间4 h以上,实现了高可靠定位。In order to solve the problem of positioning and reliable recovery of some important structures of aircraft after flight test,a highly reliable positioning system based on Beidou and GPS dual-mode module is designed.The system uses the BDM 910 module integrated with GPS/RNSS(Radio navigation satellite system)module and RDSS(Radio determination satellite system)module as the core positioning device is used in the system,and the BDS(Beidou navigation satellite system)frequency point and GPS frequency point navigation messages are received through dual links and four antennas redundancy.While effective satellite navigation signals are captured,the system own position information is resoved in real time.The location information is sent to the search device in real time in the form of Beidou short message,and the landing point coordinates of the aircraft are finally determined.The problem of positioning and recovery of relevant important structures is solved in the flight test in a complex environment.The positioning system has the ability to analyze the positioning data and the communication information of the positioning device in real time,the data analysis rate is less than 5 s,the positioning accuracy is less than 10 m,the communication success rate is more than 95%,the system is continuously running and lasts more than 4 hours,and the positioning is highly reliable.

关 键 词：北斗导航 双模定位 短报文通信 RDSS RNSS 

分 类 号：TN925.1[电子电信—通信与信息系统]