视景增强系统(EVS)一经问世,就引起了各航空公司,特别是美国航空公司的极大重视。因为这种系统能够直接为航空公司节省费用,提高营运的灵活性。它可直接在平显上(或下显上)显示红外、毫米波雷达、激光雷达及地形数据库所提供的数字式图像,引导驾驶员在低能见度条件下安全进近与着陆。从理论上讲,如果EVS能向驾驶员提供足够可靠的视景感知,机场就可不装备昂贵的Ⅲ B As soon as the EVS was introduced, it attracted the great attention of airlines, especially American Airlines. Because this system can directly save the cost for the airline, to improve operational flexibility. It displays digital images from infrared, millimeter-wave, lidar, and terrain databases directly on the flat display (or underneath) to guide the driver in safe approach and landing at low visibility. In theory, if the EVS provides the driver with a sufficiently reliable view of the scene, the airport may not be equipped with expensive III B