CAJ | 학술논문

随着航空事业的迅速发展和空中通信终端的日益增加，构建支持超高速移动的空中宽带通信网络已成为未来航空通信和军事通信发展的迫切需求。本文首先简要概述航空通信网络现状和发展趋势，在此基础上指出实现超高速移动空‐空宽带通信网络所面临的支持超高速移动、支持高数据传输速率、支持远距离单跳链接、支持大规模自组网和多用户访问机制等挑战性问题，并分析其相互制约关系。最后重点讨论空‐空宽带通信网物理层关键技术及其研究现状，包括调制技术、正交频分复用的峰均功率比抑制、频偏估计、信道估计与信道建模等。
수착항공사업적신속발전화공중통신종단적일익증가，구건지지초고속이동적공중관대통신망락이성위미래항공통신화군사통신발전적박절수구。본문수선간요개술항공통신망락현상화발전추세，재차기출상지출실현초고속이동공‐공관대통신망락소면림적지지초고속이동、지지고수거전수속솔、지지원거리단도련접、지지대규모자조망화다용호방문궤제등도전성문제，병분석기상호제약관계。최후중점토론공‐공관대통신망물리층관건기술급기연구현상，포괄조제기술、정교빈분복용적봉균공솔비억제、빈편고계、신도고계여신도건모등。
With the rapid development of aviation communications and the increasing number of airborne terminals ,it is highly demanded to build up air to air wideband ad hoc networks supporting ultra high‐speed mobility both in civil and military aviation systems .Here ,the present situation and the develop‐ment trend of aviation communication networks are briefly outlined .On the basis of it ,the challenging issues of constructing such networks are presented ,including the support of ultra high speed mobility , high data transmission rate ,long distance single‐hop links ,large‐scale Ad hoc networking ,multiple user access mechanism ,as well as their restricted relationship .Finally ,physical layer key technologies and the related research progress for wideband airborne Ad hoc networks are reviewed ,including modulation technology ,peak to average power ratio suppression in OFDM ,frequency offset estimation ,channel esti‐mation and channel modeling .