天津滨海国际机场GBAS设备性能分析

地基增强系统(GBAS)是国际民航组织(ICAO)发展的新一代卫星导航着陆引导系统。GBAS 通过地面差分修正、完好性监测等技术，提高卫星导航系统精度、完好性、连续性、 可用性的“四性”指标，为飞机提供 I 类甚至更高等级精密进近着陆引导服务。简要介绍了 GBAS 系统的系统组成、工作原理，重点分析了天津机场 GBAS 设备运行情况，从系统精度、完好性、 连续性、可用性等方面入手，评估设备运行性能指标，为后续 GBAS 投入应用提供了技术基础。

Performance Analysis of GBAS Equipment in Tianjin Binhai International Airport

Ground-Based Augmentation System (GBAS) is a new generation of satellite navigation landing guidance system developed by the International Civil Aviation Organization (ICAO).By means of ground differential correction, integrity monitoring and other technologies, GBAS improves the accuracy, integrity, continuity and availability of the satellite navigation system, and provides CAT I or higher level precision approach and landing guidance services for aircraft. The system composition and working principle of the GBAS is briefly introduced, and focuses on the analysis of the operation of Tianjin Airport GBAS equipment. It evaluates the operating performance index of the equipment from the aspects of system accuracy, integrity, continuity and availability, which provides a technical basis for the subsequent application of GBAS.