| MEMS陀螺阵列技术研究进展 |
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| 引用本文： | 沈强,刘洁瑜,汪立新,王琪.MEMS陀螺阵列技术研究进展[J].导航与控制,2017,16(5):97-103. |
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| 作者姓名： | 沈强 刘洁瑜 汪立新 王琪 |
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| 作者单位： | 火箭军工程大学控制工程系,西安,710025 |
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| 摘 要： | MEMS陀螺仪体积小、功耗低的优点扩展了惯性器件的应用领域,对于制导武器的小型化具有重要的意义.但国内MEMS陀螺仪精度相对偏低、噪声大,这限制了它在高精度军事领域的应用.陀螺阵列可以利用冗余信息有效提高MEMS陀螺的精度,实现低精度陀螺的高精度应用,而不需要技术和工艺的突破.介绍了MEMS陀螺阵列的基本原理,总结了陀螺阵列近年来的研究进展.在此基础上,提出了陀螺阵列的4大关键技术:陀螺冗余系统配置,误差分析、建模与标定,故障诊断以及信息融合.最后,分析了陀螺阵列的发展特点以及研究重点,给出了MEMS陀螺阵列技术未来的发展思路.
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| 关 键 词： | MEMS陀螺仪 陀螺阵列 信息融合 故障诊断 |
Research Progress in MEMS Gyro Array Technique |
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| SHEN Qiang,LIU Jie-yu,WANG Li-xin and WANG Qi.Research Progress in MEMS Gyro Array Technique[J].Navigation and Control,2017,16(5):97-103. |
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| Authors: | SHEN Qiang LIU Jie-yu WANG Li-xin and WANG Qi |
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| Affiliation: | Department of Control Engineering, Rocket Force University of Engineering,Xi''an 710025,Department of Control Engineering, Rocket Force University of Engineering,Xi''an 710025,Department of Control Engineering, Rocket Force University of Engineering,Xi''an 710025 and Department of Control Engineering, Rocket Force University of Engineering,Xi''an 710025 |
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| Abstract: | MEMS gyroscopes have extended the field of inertial sensors application thanks to their attractive advanta-ges such as small size and low power consumption,which is significant for miniaturization of the guided weapon.However,in our country,the low accuracy and large noise of the MEMS gyroscope limit the applications to military tasks requiring high-precision rate signals.The accuracy of the MEMS gyroscope can be effectively improved through gyro array technique with redundant information,which means that the MEMS gyroscope with low accuracy can be applied in high precision filed in the absence of technological breakthrough.In this paper,the basic theory of the MEMS gyro array technique is intro-duced,and the research progress in this filed in recent years is summarized.On that basis,the key technologies are pro-posed,which includes redundant configuration of the gyro array,error analysis,modeling and calibration,fault diagnosis and information fusion.Finally,the developmental characteristics and research emphasis is analyzed,and the develop strat-egy and trend of the MEMS gyro array is proposed. |
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| Keywords: | MEMS gyroscope gyro array information fusion fault diagnosis |
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