适用微纳卫星的便携测控站设计

Design of a Portable TT&C Ground Station for Micro-Nano Satellites

针对微纳卫星的测控数传需求,利用业务无线电及ISM(Industrial-Scientific-Medical,工业-科学-医疗)频段和设备,设计了适用微纳卫星的便携式测控站,包括ISM和VHF/UHF(Very High Frequency/Ultra High Frequency,甚高频/超高频)2个通道;优选了COTS(Commercial Off The Shelf,商用现货)ISM通信电台和VHF/UHF全模式电台、VHF/UHF八木天线、S频段花瓣式网状抛物面天线等部组件,3副天线共用1个伺服机构;并对ISM和VHF/UHF信道的上/下行链路电平进行估算。结果表明:该多频段多通道便携测控站的设计方案可行性好,效费比高,并已在相关微纳卫星的测控应用中得到验证。

To meet TT＆C （Tracking Telemetry and Command） requirements of a micro-nano satellite, a portable TT＆C ground station was designed with amateur radio and ISM （Industrial-Scientific-Medical） frequency bands and devices. The station includes two radio channels, ISM channel and VHF/UHF （Very High Frequency/Ultra High Frequency） channel. The system components mainly include COTS （Commercial-Off-The-Shelf） ISM transceivers, VHF/UHF all-mode transceivers, VHF/UHF Yagi antennas and S-band petal reticulate parabolic antenna. The VHF antenna, UHF antenna and parabolic antenna share the same servo-system. The uplink and downlink budget of the ISM and VHF/UHF channels were estimated. The design of the cost-effective multi-frequency-band multi- channel portable ground station has been validated through a micro-nano satellite project.