摘要
品质因素(FOM)是陆基增强系统(GBAS)机载接收机适航论证的重要性能指标。根据美国航空无线电技术委员会(RTCA)有关GBAS机载系统标准DO-253D给出的FOM结论性计算公式,分析研究了FOM的内涵,给出了FOM的定义以及FOM完整的解算过程。仿真分析了品质因素与相关参数的关系。仿真结果给出了Ⅰ类GBAS系统平滑时间常数的选择依据,并给出了为获得符合Ⅰ类要求的品质因素,飞机与GBAS基准站的水平距离和垂直距离范围,以及地面和机载接收机的类型配置。研究结果可为我国GBAS机载系统适航标准的制定提供相应的技术支持。
The figure of merit(FOM)is an important performance indicator for airworthiness demonstration of ground-based augmentation system(GBAS)airborne receiver.According to the FOM conclusive calculation formula given by the American Aeronautical Radio Technical Committee(RTCA)on the GBAS airborne system standard DO-253 D,the connotation of FOM was analyzed and the definition of FOM and the complete solution process of FOM were given.The relationship between FOM and related parameters was analyzed through simulation.The simulation results show the selection basis of smoothing time constant of GBAS system beyond CategoryⅠPrecision Approach(CATⅠ).The horizontal and vertical distance ranges between aircraft and GBAS reference stations,as well as the type configuration of ground and airborne receivers,were given for FOM which can meet CATⅠrequirements.The research results can provide corresponding technical support for the formulation of airworthiness standards for Chinese GBAS airborne system.
作者
倪育德
刘希之
NI Yu-de;LIU Xi-zhi(School of Electronics and Automation CAUC,Tianjin 300300,China;Key Laboratory of Civil Aircraft Airworthiness Technology,CAAC,Tianjin 3OO3OO)
出处
《计算机仿真》
北大核心
2020年第7期48-54,共7页
Computer Simulation
基金
国家重点基础研究发展计划(2016YFB0502402)。
