空中交通环境在很大程度上依赖于地面通信、导航和监视系统的支持,机场设施和空中交通管理的体制和效率.我国近年来在通信、导航、监视和机场建设等基础设施上发展较快,取得了可喜的成绩.然而,我国现有的空中交通环境仍然存在许多缺点和限制:1.通信、导航和监视系统大 The air traffic environment relies heavily on the support of terrestrial communications, navigation and surveillance systems, the institutional and efficiency of airport facilities and air traffic management. In recent years, our country has developed rapidly in infrastructure such as communications, navigation, surveillance and airport construction , Has made gratifying achievements.However, there are still many shortcomings and limitations of the existing air traffic environment in our country: 1. Large communication, navigation and surveillance systems