| CDAS 20m 天线分系统设计 |
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| 引用本文： | 宋林会.CDAS 20m 天线分系统设计[J].中国空间科学技术,1998,18(3):73-78. |
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| 作者姓名： | 宋林会 |
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| 作者单位： | 西北电子设备研究所 |
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| 摘 要： | ＣＤＡＳ天线分系统主要由天线机械结构、馈电网络、天线控制及微机监控几部分组成。天线采用２０ｍ卡塞格伦式天线，馈源为波纹喇叭，多模单脉冲自跟踪方案；利用轴角编码器构成伺服位置环；由三相可控硅功放及伺服直流电机驱动天线；双电机克服齿隙影响；天线具有多种工作方式，操控方便；监控微机对系统统一监控并完成故障实时在线检测功能。
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| 关 键 词： | 数据管理 指挥控制系统 地球站天线 设计 |
THE DESIGN OF CDAS 20m ANTENNA SUBSYSTEM |
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| Song Linhui.THE DESIGN OF CDAS 20m ANTENNA SUBSYSTEM[J].Chinese Space Science and Technology,1998,18(3):73-78. |
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| Authors: | Song Linhui |
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| Abstract: | This paper introduces the configuration,characteristics and system design of the antenna subsystem,which meets relevant requirements of the Command and Data Acquisition Station (CADS) of FY 2 China′s first geostationary meteorological satellite.CDAS antenna subsystem mainly consist of antenna mechanical Structure,feed network,antenna control unit (ACU) and monitored control (MAC).This antenna is a 20m modified cassegrain antenna,its feed is a corrugated horn,and adopts multiple moulding autotrack mono pulse method.The servo position loop consists of the angle encoder.Antenna is driven by 3 phase SCR and servo DC motor.The backlash is eliminated by using dual motor.ACU has multiple operation modes and is easy controlled.ACU monitors working parameters and status of system,and detects the errors on line. |
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| Keywords: | Data management Commend and control system Earth station antenna Design |
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