载人航天
載人航天
재인항천
MANNED SPACEFLIGHT
2012年
6期
80-86
,共7页
Ka频段%空间站%测控通信%角捕获与跟踪
Ka頻段%空間站%測控通信%角捕穫與跟蹤
Ka빈단%공간참%측공통신%각포획여근종
Ka Band%Space Station%TY&C Communication System%Angle Acquisition and Tracking
为了满足空间站等中低轨航天器对地高速数据传输、高精度测轨的要求，提出建立S／Ka频段测控通信系统，对系统体制、工作频段、空地链路能力等进行总体设计，阐述了窄波束天线的角捕获与跟踪、高速调制解调、Ka频段信道及功放等关键技术及其解决措施；分析了系统的运行模式，介绍系统在空间站、高分辨率对地观测等工程项目中的应用。
為瞭滿足空間站等中低軌航天器對地高速數據傳輸、高精度測軌的要求，提齣建立S／Ka頻段測控通信繫統，對繫統體製、工作頻段、空地鏈路能力等進行總體設計，闡述瞭窄波束天線的角捕穫與跟蹤、高速調製解調、Ka頻段信道及功放等關鍵技術及其解決措施；分析瞭繫統的運行模式，介紹繫統在空間站、高分辨率對地觀測等工程項目中的應用。
위료만족공간참등중저궤항천기대지고속수거전수、고정도측궤적요구，제출건립S／Ka빈단측공통신계통，대계통체제、공작빈단、공지련로능력등진행총체설계，천술료착파속천선적각포획여근종、고속조제해조、Ka빈단신도급공방등관건기술급기해결조시；분석료계통적운행모식，개소계통재공간참、고분변솔대지관측등공정항목중적응용。
In order to satisfy the requirements of spacecrafts such as the space station for high rate data transfer and high precision track telemetry, the proposal of constructing S/Ka band TT&C system is put forward.The system scheme, work frequency and ground-to-air link ability of the S/Ka band TT&C system are designed. Key technologies such as the angle acquisition and tracking of narrow beam antenna, high rate data transfer, and Ka band channel and power amplifier are described with resolutions provided. Operation mode of the system is analyzed. Applications in such engineering projects as the space station and high resolution earth observation, etc. are introduced.
