基于模拟信号源的机载BDS接收机性能测试  

Performance test of airborne BDS receiver using analog signal generator

作　　者：倪育德 马圆晨 张心一 刘鹏 NI Yude;MA Yuanchen;ZHANG Xinyi;LIU Peng(College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津300300

出　　处：《中国测试》2019年第4期21-28,共8页China Measurement & Test

基　　金：中央高校基本科研项目(ZXH2011C013);民航局项目(AADSA0007)

摘　　要：针对机载北斗卫星导航系统(BDS)接收机无法进行实际测试的问题,基于对机载BDS接收机的首次定位时间(TTFF)、重捕时间和定位精度的分析与仿真,研究某一指标与相关参数的关系,提出利用全球导航卫星系统(GNSS)模拟信号源测试机载BDS接收机性能指标的测试方法。该方法结合真实飞行数据,利用GNSS模拟信号源模拟飞机运动过程,从而对飞行过程中机载BDS接收机的关键指标进行测试。测试结果表明:机载BDS接收机的首次定位时间满足RTCA DO-208对TTFF不大于5 min的要求;重捕时间基本满足TSO-C146d对重捕时间不大于20 s的要求;静态误差满足北斗公开服务性能规范对其不大于10 m的要求,动态误差基本满足RTCA DO-208对其小于230 m的要求,且测试结果均符合理论分析。For the problem that the airborne Beidou Satellite Navigation System (BDS) receiver cannot be tested actually, based on the analysis and simulation of the Time to First Fix (TTFF), reacquisition time, and positioning accuracy of the airborne BDS receiver, the relationship between a certain index and related parameters is studied. A test method for testing the performance index of airborne BDS receiver using Global Navigation Satellite System (GNSS) analog signal generator is proposed. This method combines real flight data and uses GNSS analog signal generator to simulate the motion process of the aircraft, thereby testing the key indicators of the airborne BDS receiver during the flight. The test results show that the Time to First Fix of the airborne BDS receiver meets the requirements of RTCA DO-208 to TTFF not greater than 5 minutes;the reacquisition time basically meets the requirement that TSO-C146d has a reacquisition time of less than 20 seconds;the static error meets the requirements of Beidou Service performance specifications for its requirements of not more than 10 m, the dynamic error basically meets RTCA DO-208 requirements of less than 230 m, and the above test results are in line with theoretical analysis.

关 键 词：无线通信技术 性能测试 GNSS模拟信号源 机载BDS接收机 

分 类 号：TN967.1[电子电信—信号与信息处理]