基于COMPASS-G2的地基增强系统构建与测评

Construction and Performance Estimation of COMPASS-G2 Ground Based on Augmentation System

中国民用航空局(CAAC)实施基于性能的导航(PBN)的关键技术是北斗(COMPASS-G2)及其地基增强系统(GBAS)。本文阐述了GBAS的组成和工作流程,构建了基于COMPASS的GBAS仿真系统,给出设计方案和开发程序图。通过静止测试、机场跑道跑车试验和机场区域跑车测试3种方法,分析所采集数据,验证信号增强的效果。在GBAS改善信号精度的基础上,建构用于终端区指导飞行器精密进近(GLS)的北斗着陆系统性能评估体系。给出了评估北斗系统指导进近性能的地面和空中检验方法。

Fundamental design in Global Navigation Satellite System（GNSS） performance limits the Performance-Based Navigation（PBN） implementation.According to China ＂COMPASS＂,＂HEIGHT PLANE＂major RD projects and Civil Aviation Administration of China（CAAC） PBN roadmap,BEI-DOU（COMPASS-G2） and its Ground Based Augmentation System（GBAS） is the key technology.A COMPASS-GBAS simulation system is constructed and presents the design scheme and program diagram.Validation of signal enhancement effect is analyzed through 3 test-modes collect data.By GBAS in improving signal precision,evaluation system is established to check aircraft Precision Approach（PA） on terminal area.Ground and airspace inspection methods are used to evaluate the performance of GBAS,and is found to work well in automatic control system nationalization of Air Traffic Control,development and improvement COMPASS-GBAS system.