随着民航事业的发展,航空器在空中由于各种原因相互穿越或占用对方高度层的情况越来越多,并且在逆向飞行时的情况占了很大比例,在民航总局1990年颁布的《中国民用航空空中交通管制工作规则》当中,对逆向飞行的规定是相当严格的,要求在相遇前或相遇后十分钟穿越或占用对方高度层,并且上升或下降到符合垂直间隔规定的高度层,如果利用测距台则要相遇后 With the development of civil aviation, there are more and more situations that aircraft cross each other or occupy each other’s airspace in the air for a variety of reasons, and the situation in reverse flight accounts for a large proportion. In the Civil Aviation Administration of China Civil Aviation Air Traffic Control Regulations ", the provisions of the reverse flight is quite strict, requiring 10 minutes before or after the encounter crossing or occupying the other level, and up or down to meet the requirements of the vertical interval level, if After using the rangefinder to meet