CAJ | 학술논문

异地天线组阵可综合利用现有的天线设施，充分发挥设施资源的综合效能，对于我国未来深空探测任务的测控通信支持，提高测控通信距离，具有特殊的应用前景。介绍了异地天线组阵特点，并对异地天线组阵中关键的站间时延差修正技术进行研究，利用“嫦娥3号”下行数据开展技术试验验证，不仅获得了喀什、青岛、北京、三亚四站间的精确时延差结果，完成四站信号的基带合成和符号流合成，而且优化了软件相关器参数；该技术同时应用到欧空局“金星快车”微弱信号的基带合成处理中，为后续深空探测信号合成的工程化应用奠定了良好基础。
이지천선조진가종합이용현유적천선설시，충분발휘설시자원적종합효능，대우아국미래심공탐측임무적측공통신지지，제고측공통신거리，구유특수적응용전경。개소료이지천선조진특점，병대이지천선조진중관건적참간시연차수정기술진행연구，이용“항아3호”하행수거개전기술시험험증，불부획득료객십、청도、북경、삼아사참간적정학시연차결과，완성사참신호적기대합성화부호류합성，이차우화료연건상관기삼수；해기술동시응용도구공국“금성쾌차”미약신호적기대합성처리중，위후속심공탐측신호합성적공정화응용전정료량호기출。
In very long baseline interferometry (VLBI)system,remote multi-antenna arraying technique can be on the basis of the existing antenna facility and give full play to the overall efficiency of resources and infrastructure, which can expand the TT&C communication distance,and provide the TT&C communication service for China’s future deep-space exploration mission,and will have a special application prospect.Firstly,we describe the features of remote multi-antenna arraying,and then study on the time-delay correction approach between key stations,using“Chang’e-3”downlink data to carry out the technological experiment.With this technique we get the precise time-delay difference values between Kashi,Qingdao,Beijing and Sanya stations,successfully implement baseband compound and symbol stream compound of the four stations’signals,and optimize the parameters of the software correlators.This technique has also been applied to process ESA’s Venus Express weak signal baseband compound and laid a good engineering application foundation for future deep-space exploration signal compound.