| 线性加速度计在压电陀螺卡尔曼滤波技术中的应用 |
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| 引用本文： | 林旻序,汪永阳,戴明,乔彦峰.线性加速度计在压电陀螺卡尔曼滤波技术中的应用[J].中国光学与应用光学文摘,2011(6). |
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| 作者姓名： | 林旻序 汪永阳 戴明 乔彦峰 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金资助项目(No.2009CB72400105); 国家863高技术研究发展计划资助项目(No.2008AA121803) |
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| 摘 要： | 针对光电稳定平台常用的压电陀螺随机游走噪声大的缺点,提出采用基于线性加速度计的卡尔曼滤波技术对其进行信号滤波。利用卡尔曼滤波理论,建立了压电陀螺角速率状态观测方程,采用线性加速度计测量平台惯性角加速度,由此对陀螺信号进行了滤波。实验结果表明:采用线性加速度计能够在不影响陀螺带宽的前提下将压电陀螺的随机游走噪声水平由原有的0.005(°).s-1/槡Hz降低到0.001 25(°).s-1/槡Hz,提高了光电平台的稳定精度。
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| 关 键 词： | 光电稳定平台 压电陀螺 线性加速度计 卡尔曼滤波 |
Application of linear accelerometer to Kalman filter for piezoelectric gyro |
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| LIN Min-xu,WANG Yong-yang,DAI Ming,QIAO Yan-feng.Application of linear accelerometer to Kalman filter for piezoelectric gyro[J].Chinese Optics and Applied Optics Abstracts,2011(6). |
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| Authors: | LIN Min-xu WANG Yong-yang DAI Ming QIAO Yan-feng |
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| Institution: | LIN Min-xu1,2,WANG Yong-yang1,DAI Ming1,QIAO Yan-feng1(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Graduate University of Chinese Academy of Sciences,Bejing 100039,China) |
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| Abstract: | As for the larger random walk noise of a piezoelectric gyro in the stabilized platform,the Kalman filtering technology based on a linear accelerometer is proposed to perform the signal filtering.Based on Kalman filtering theory,the observation equation of an angle rate for the piezoelectric gyro is established,and the linear accelerometer is used to measure the inertial angle accelaration of the platform.Then,the signal filtering of piezoelectric gyro is achieved.Experimental results show that the random wa... |
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| Keywords: | optoelectronic stabilized platform piezoelectric gyro linear accelerometer Kalman filtering |
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