摘要
本文介绍了GBAS和其进近服务类型,详细介绍了基于GPS单频实现III类运行的GAST D GBAS技术概念框架,研究了地面设备完好性监测框架和播发电文以及机载设备新增算法和监测器设计.针对电离层异常对GBAS运行的影响,根据电离层梯度异常模型,模拟了故障场景,设计实现了GAST D地面和机载仿真验证平台,并对模拟的故障场景下GAST D GBAS系统进行验证和分析.
This paper introduces GBAS and its Approach Service Types,the technology conceptual framework for CATⅢGBAS based on single-frequency GPS(GAST D)was described in detail,the integrity monitoring scheme and broadcasted messages of ground equipment as wells as additional algorithms and monitors of airborne equipment were studied.For the impact of ionospheric anomalies on GBAS operation,ionospheric gradient anomalous event was simulated based on anomalous model,GAST D GBAS ground and airborne simulation verification platform were designed and developed,and the performance of GAST D GBAS under ionospheric abnormal condition was verified and analyzed.
作者
郑金华
程松
王岸石
ZHENG Jinhua;CHENG Song;WANG Anshi
出处
《现代导航》
2020年第1期1-8,共8页
Modern Navigation
基金
国家重点研发计划《Ⅲ类精密进近着陆卫星导航技术》项目支持。
