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5月底,中国北斗卫星导航系统第四颗卫星发射升空并进入预定轨道。北斗卫星导航系统交付使用,将使我国民航和军航的导航技术发生历史性的变革,飞行员将不必再依赖地面导航设施而能沿着精确定位的航迹飞行,并使飞机在能见度差的条件下安全、精确地飞行和着陆。同时,将使我国民航依赖于美国GPS建立的飞往西藏林芝、拉萨等地形复杂机场的精密导航技术(RNP)不再受制于人,特别是当美国实施干扰或关闭GPS时,不致停航。
By the end of May, the fourth satellite of China’s Beidou satellite navigation system was launched and entered the scheduled orbit. The delivery of the Beidou satellite navigation system will make historical changes in the navigation technologies of civil aviation and military aviation in our country. The pilot will no longer rely on the ground navigation facilities to fly along the precisely located flight path and will make the aircraft in poor visibility conditions Safely and accurately fly and land. At the same time, the precision navigation technology (RNP) that China’s civil aviation depends on the GPS established by the GPS of the United States to fly to complex terrain such as Nyingchi and Lhasa in Tibet will no longer be controlled by others. In particular, RNP will not be suspended when the United States interferes with or disables GPS.