民机机上联网航空领域现状分析

Overview of Onboard Satellite Communicating System

随着地面网络快速发展以及航空出行逐渐大众化,民用飞机乘客对乘机过程中联网的需求日益强烈。文中从机上联网背景出发,围绕乘客需求、机上联网市场与发展现状出发分析机上联网的必要性。聚焦于机上联网技术发展,发现机上空中互联技术正在从Ku向Ka和高通量Ku演进。针对机上联网的卫星网络接入和机载Wi-Fi软硬件设备以及服务两项关键技术以及应用情况展开分析,分析发现美国在机上联网技术方面相对成熟,Ka以及高通量Ku技术发展仍以美国和欧洲为主,国内实现机上联网全国产化仍需加强两项机载关键技术的投入。机上联网具有很长的产业链,对产业链上的企业来讲既是机会也是挑战。最后从乘客需求、航空公司、第三方服务商以及适航4方面分析了机上联网带来的机遇和挑战。

With the development of ground internet and the popularization of travel by flying,the passengers urgently want to surf the internet during flight.In this paper,based on the background of interconnection onboard,the necessity is discussed from three facts including requirement of passengers,interconnection onboard market and current application status.Focused on the development of satellite communications,it is found that the satellite broadband develops from brand Ku to brand Ka and brand HTS Ku(High Throughput Satellite).The analysis is carried out on the key technologies of interconnection onboard,and the results show that the technologies of satellite communications specially on the brand Ka and HTS Ku in USA and European are more mature.In order to realize the national production of interconnection onboard,it is necessary to increase investment in above two key technologies.The industry chain of onboard web interconnection is complex and long,it’s not only an opportunity but also a challenge for the companies of the industry chain.Accordingly,the requirement of passenger,airlines,the third party service provider and airworthiness are concluded in this paper.