空中客车工业公司从1994年10月开始进行客机卫星导航自动着陆的试验。该公司于1995年3月在北京、上海和广州机场,使用由塞克斯坦特航空电子公司(SEXTANT)提供的机载接收机和地面站,用A340宽体客机,在中国进行了首次卫星导航自动着陆的飞行表演。当飞机上安装了“全球定位系统”(GPS)接收机后,能够获得100米左右的飞机位置精度;但是,要满足自动着陆的需要,要求飞机定位精度达到2米左右。 Airbus Industries, Inc. began its pilot test of automatic landings on passenger aircrafts using satellite navigation in October 1994. The company used airborne receivers and ground stations provided by SEXTANT at its airports in Beijing, Shanghai and Guangzhou in March 1995 and conducted its first satellite navigation in China using the A340 wide-body passenger aircraft Automatic landing air show. When the “GPS” receiver is installed on the aircraft, the aircraft position accuracy of about 100 meters can be obtained; however, to meet the needs of automatic landing, the aircraft positioning accuracy needs to be about 2 meters.