基于北斗的定向系统设计和实现  

Design and realization of BDS attitude determination system

作　　者：左航 杜娟[1,2,3] 涂锐 韩军强[1,3] 王培源[1,2] 陶琳琳 ZUO Hang;DU Juan;TU Rui;HAN Jun-qiang;WANG Pei-yuan;TAO Lin-lin(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Precision Navigation and Timing Technology,Chinese Academy of Sciences,Xi’an 710600,China)

机构地区：[1]中国科学院国家授时中心,西安710600 [2]中国科学院大学,北京100049 [3]中国科学院精密导航定位与定时技术重点实验室,西安710600

出　　处：《信息技术》2024年第12期45-52,共8页Information Technology

基　　金：国家自然科学基金项目(42274019)。

摘　　要：为实现对北斗观测数据的远程实时处理并解算基线方向,文中设计了基于北斗观测的定向系统,包括数据采集终端和方向解算方案。系统以STM32微控制器为控制核心,通过GNSS板卡及天线采集北斗系统观测数据,并通过4G模块将数据上传到服务器,在服务器上解析并实时解算观测数据以实现定向。使用约5km和约100m基线测站实测数据,以及文中所述定向系统采集的约2.6m基线观测数据,开展定向实验验证工作。结果表明,对于三种长度基线,方位角和俯仰角的标准差(STD)分别为0.0004°和0.0003°、0.0014°和0.0013°以及0.0540°和0.0891°,可以为北斗定向的应用提供参考。In order to realize the remote real-time processing of Beidou observation data online and solve the baseline attitude,this paper designs an attitude determination system based on Beidou observation,including a data collecting terminal unit and an attitude determination solving scheme.The system uses the STM32 microcontroller as the control core,collects the observation data of Beidou system through GNSS board and antennas,and uploads the data to the server through 4G module.The observation data is analyzed on the server and the real-time calculation is performed to achieve attitude determination.The attitude determination experiment verification of attitude determination work is carried out using the measured data of about 5km and about 100m baseline station,as well as the actual 2.6m baseline observation data collected by the attitude determination system described in this paper.The results show that for the three length baselines,the Standard Deviation(STD)of azimuth and pitch angle is 0.0004°and 0.0003°,0.0014°and 0.0013°,and 0.0540°and 0.0891°,respectively,which can provide a reference for the application of Beidou system attitude determination.

关 键 词：定向系统 双天线 北斗卫星导航系统 基线 精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]