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在进入下一世纪,继续进行全天候运行符合英、荷、法、德等国空中交通服务的共同利益。为此,他们联合研究精密引导的三个前沿领域:1998年后ILS持用性、MLS成熟性和GNSS可行性。此举的目的在于,为欧洲从ILS向MLS过渡建立一个共同的基础。这一共同途径的焦点,就是于1994年9月份在维也纳召开的ICAO欧洲区域航行(Euran)特别会议。会上讨论的议题之一为“ILS向新的精密进近和着陆系统的过渡”。尽管预期会出现基于GNSS的着陆系统,但欧洲航行规划专家组(EANPG)在这次Euran会议上提出了一个从ILS向新系统过渡的新策略。这一
In the next century, the continuous operation of the all-weather operation will be in the common interest of air traffic services in Britain, the Netherlands, France and Germany. To this end, they jointly studied the three leading areas of precision guidance: ILS persistence, MLS maturity and GNSS viability after 1998. The move is aimed at building a common foundation for the transition from ILS to MLS in Europe. The common thread of this common approach is the ICAO Special Meeting for Eurasian Regional Navigation (Euran) held in Vienna in September 1994. One of the topics discussed at the meeting was “The ILS Transition to the New Precision Approach and Landing System.” Although a GNSS-based landing system is expected, the European Navigation Planning Panel (EANPG) at this Euran meeting presented a new strategy for transitioning from ILS to the new system. This one