Inertial navigation system (INS) based on Micro-Electro-Mechanical System (MEMS) has been used in the both civil and military fields. However, large errors such as bias errors restrict them from being applied widely. Rotating modulation technique is a mature method which can modulate the constant errors of MEMS. In this way, all the devices’ errors can be modulated if INS has two axes. Dual-axis INS has different forms of organizational structures which will affect the error propagation characteristics. Traditional dual-axis RINS cannot modulate all the devices’ errors at the same time, in this paper, dual-unit RINS is studied and an improved rotation scheme is proposed. Theoretical analysis proves that the performance of the reported scheme is better than the traditional dual-axis RINS. Simulation results based on Matlab show that the performance of the dual-unit RINS with proposed rotation scheme is much better than the traditional dual-axis RINS with an eight-position scheme, whose position accuracy is better than the strap-down mode. What is more, the dual-unit RINS can improve the fault-tolerant performance of the system.


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    Titel :

    A rotation scheme for dual-unit inertial navigation system based on MEMS sensors


    Beteiligte:
    Zhang, Lixiang (Autor:in) / Wang, Lei (Autor:in) / Liu, Zengiun (Autor:in) / Ban, Jingxuan (Autor:in)


    Erscheinungsdatum :

    2018-08-01


    Format / Umfang :

    144097 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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