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Acquisition and loop control of ultra-tight INS/BeiDou integration system

机译:超紧INs /北斗集成系统的采集和回路控制

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摘要

Focus on the ultra-tight INS/GNSS integration, the NH code evasion method is proposed in BeiDou baseband signal process. An ultra-tight INS/BeiDou integration model based on vector tracking loop is built to analyze the coupling mechanism and control scheme between loop measurements and INS navigation data. Two control schemes are derived, including the relationship between code phase difference and the INS positioning error, the relationship between frequency difference and INS velocity error. A prototype based on BeiDou software-defined receiver and MEMS is designed and the model is tested.
机译:针对超紧密的INS / GNSS集成,提出了北斗基带信号处理中的NH码规避方法。建立了基于矢量跟踪环的超紧密INS / BeiDou集成模型,分析了环测量与INS导航数据之间的耦合机制和控制方案。推导了两种控制方案,包括码相位差与INS定位误差之间的关系,频率差与INS速度误差之间的关系。设计了基于北斗软件定义的接收器和MEMS的原型,并对模型进行了测试。

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