机场飞机常因着陆在低能见度天气使驾驶员看不清跑道而造成困难、甚至事故。激光导航仪——着陆引导系统就是为解决这一困难而研制的。 该系统利用可见激光两束沿跑道两侧方向斜向上射向空中,利用激光的穿云破雾能力和鲜艳的色彩,飞行员在高空就可以发现它。飞行员通过激光指示出跑道的位置和飞机下冲的斜率,沿着激光的 Airport airplanes often cause difficulties or even accidents due to landing in the low visibility weather so that the driver can not see the runway. Laser Navigation - landing guidance system is developed to solve this problem. The system uses two visible laser beams to shoot obliquely up the sky on both sides of the runway. Using the laser’s ability to penetrate clouds and vivid colors, the pilot can find it at high altitudes. Pilots indicate the location of the runway and the undershooting slope of the aircraft by laser, along the laser