基于COTS SoC的星载微型GNSS接收机硬件设计
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摘要
卫星平台的小型化使小卫星、纳卫星及皮卫星等微小卫星成为研究热点。针对微小卫星对星载导航接收机小型化、低功耗、低成本等要求,提出一种基于COTS(Commercial off-the-shelf)组件和SoC技术构建星载微型导航接收机的硬件设计方法。该设计包括射频模块,基带处理模块、时钟模块和电源管理模块。实测表明,该导航接收机原理样机重约45g,尺寸100mm×60mm,功耗约3 W,兼容处理GPS L1/L2、BD2B1/B2信号,可完成双模、双频、双模双频等多种模式的配置,符合微小卫星对导航接收机提出的技术要求,为微小卫星等空间飞行器的卫星导航提供了新的思路。
Satellite platforms miniaturization enables pico-satellite,nano-satellite and other micro-satellites become a hot topic.To resolve the new problems caused by miniaturization,low power and low cost in spaceborne navigation receiver on micro-satellites,hardware design of spaceborne miniature navigation receiver based on COTS and SoC is proposed.The design includes RF module,baseband processing module,clock module and power management module.Results show that:the prototype weighs about 45g;size is 100mm×60mm;power consumption is about 3W.It has the capability to process GPS L1/L2,BD2B1/B2 signal and can be configured to dual-mode,dual-frequency,dual-mode and dual-frequency.The miniature spaceborne navigation receiver satisfies the technical demands of mirco-satellite.It can provide new methods and thoughts for mirco-satellite navigation.
Satellite platforms miniaturization enables pico-satellite,nano-satellite and other micro-satellites become a hot topic.To resolve the new problems caused by miniaturization,low power and low cost in spaceborne navigation receiver on micro-satellites,hardware design of spaceborne miniature navigation receiver based on COTS and SoC is proposed.The design includes RF module,baseband processing module,clock module and power management module.Results show that:the prototype weighs about 45g;size is 100mm×60mm;power consumption is about 3W.It has the capability to process GPS L1/L2,BD2B1/B2 signal and can be configured to dual-mode,dual-frequency,dual-mode and dual-frequency.The miniature spaceborne navigation receiver satisfies the technical demands of mirco-satellite.It can provide new methods and thoughts for mirco-satellite navigation.
引文
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[14]袁春柱,李志刚,李军子,等.微纳卫星COTS器件应用研究[J].计算机测量与控制,2017,25(2):156-159.
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[2]Oliver Montenbruck,Markus Markgraf,Miquel Garcia-Fernandez.GPS for microsatellites-status and perspectives[A].6th IAA Symposium on Small Satellites for Earth Observation[C].Berlin,2007.
[3]Barnard A,Nwosa C.COTS Based On-Board-Computer on South Africa's Sumbandilasat:A Radiation and In-Orbit Performance Analysis[A].IEEE Radiation Effects Data Workshop[C].IEEE,2011:1-4.
[4]王峰,郭金生,李晖.商用现货器件在卫星中的应用[J].航天器工程,2013,22(4):87-94.
[5]姜秀杰,孙辉先,王志华.商用器件的空间应用需求、现状及发展前景[J].空间科学学报,2005,25(1):77-80
[6]谢钢.GPS原理与接收机设计:Principles of GPS and receiver sdesign[M].北京:电子工业出版社,2009.
[7]王静.GNSS接收机CMOS射频前端芯片系统级设计[D].上海:上海交通大学,2008.
[8]梁淏翔.基于FPGA的可重构多模导航基带处理技术研究[D].成都:电子科技大学,2014.
[9]邢克飞,何伟,杨俊.COTS器件的空间应用技术研究[J].计算机测量与控制,2011,19(7):1741-1745.
[10]丁义刚.空间辐射环境单粒子效应研究[J].航天器环境工程,2007,24(5):283-290.
[11]贾文远,安军社.COTS器件的空间辐射效应与对策分析[J].电子元件与材料,2015,34(11):1-4.
[12]李毅,李瑞,黄影,等.基于COTS的空间信息处理系统单粒子闭锁保护技术实现[J].宇航学报,2007,28(5):1283-1287.
[13]张昊,王新升,李博,等.微小卫星单粒子闩锁防护技术研究[J].红外与激光工程,2015,44(5):1444-1449.
[14]袁春柱,李志刚,李军子,等.微纳卫星COTS器件应用研究[J].计算机测量与控制,2017,25(2):156-159.
[15]王淼,纪文章,宁金枝,等.星载扩频应答机抗SEU方法及验证[J].航天器工程,2014,23(1):91-95.