Ka频段大口径天线阵系统及关键技术  

Ka-band Distributed Large Antenna Array System and Key Technology

作　　者：张旭[1] ZHANG Xu(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所

出　　处：《电讯技术》2019年第8期885-890,共6页Telecommunication Engineering

摘　　要：地基直接深空测控通信/深空探测难题均在于长达数亿公里的超远距离带来的巨大传输损耗。提出了基于Ka频段分布式大口径天线阵的地基直接测控通信/深空探测设想,探讨了其应用模式及工作机理,对其中共同的关键技术Ka频段上行超大功率空间合成给出了解决措施,具体包括设备自身的ps量级时延稳定性设计、对流层延迟ps量级实时修正、空间传输距离的ps量级预测等。The restraining factor for both ground-based deep space telemetry,tracking and command(TT&C)and deep space exploration is the too large transmission loss due to the ultra-long transmission distance of several hundred million kilometers.The investigation based on Ka-band distributed large antenna array is proposed.Its application schema and working mechanism is discussed.The preliminary scheme for the spatial signal synthesis of Ka-band uplink antenna array,the common key technology of both ground based deep space TT&C and deep space exploration,is illustrated,including the equipment's picosecond order delay stability design,troposphere picosecond order delay correct technology and spatial transmission distance picosecond order calculation.

关 键 词：深空探测 测控通信 分布式天线阵 

分 类 号：TN927[电子电信—通信与信息系统] V556[电子电信—信息与通信工程]