Point out The current navigation system cannot meet the need of the rapid development of air transportation, thus new navigation system (CNS/ATM) should be introduced.

• 本文针对当前航行系统的状况，分析了其存在的缺陷，指出现行的航行系统已不能满足高速发展的民航运输的需要，在此基础上引入新航行系统(CNS／ATM)。