| 基于磁强计测量的滚转弹药姿态估计 |
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| 引用本文： | 杨荣军,王良明,修观,丁传炳.基于磁强计测量的滚转弹药姿态估计[J].海军工程大学学报,2011(5). |
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| 作者姓名： | 杨荣军 王良明 修观 丁传炳 |
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| 作者单位： | 南京理工大学能源与动力工程学院; |
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| 摘 要： | 为了实时获得滚转弹药的飞行姿态信息,提出了一种速率陀螺与磁强计组合的姿态测量方案。该方案采用磁强计获得大地磁场强度在弹体三轴的投影及其变化率,结合刚体转动运动模型,利用最优估计技术获得了滚转弹药姿态信息。与单点测量方法相比,最优估计方法综合了测量信息序列,不会出现反三角函数双值失控现象,并可获得更高精度。仿真表明:陀螺无漂移时,俯仰角、偏航角的解算精度小于0.1°;采用低成本陀螺含漂移时,姿态角的解算精度小于0.4°。
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| 关 键 词： | 滚转弹药 姿态估计 地磁传感器 信号处理 卡尔曼滤波器 |
Attitude estimation of rolling-munitions using magnetometer |
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| YANG Rong-jun,WANG Liang-ming,XIU Guan,DING Chuan-bing.Attitude estimation of rolling-munitions using magnetometer[J].Journal of Naval University of Engineering,2011(5). |
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| Authors: | YANG Rong-jun WANG Liang-ming XIU Guan DING Chuan-bing |
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| Institution: | YANG Rong-jun,WANG Liang-ming,XIU Guan,DING Chuan-bing(School of Energy and Power Engineering,Nanjing Univ.of Science andTechnology,Nanjing 210094,China) |
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| Abstract: | In order to determine the attitude of rolling-munitions in real-time,an attitude estimation scheme based on gyro and magnetic detecting technologies was proposed.The scheme adopts 3-axis magnetometer detecting the geomagnetic field in the body axis of the projectile.Combined with the rigid body rotation motion model,the attitudes of rolling-munitions were obtained by optimal estimation.Compared with the single-point measurement method,the optimal estimation method utilizing the sequence of measurement infor... |
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| Keywords: | rolling-munitions attitude estimation geomagnetic sensor signal processing Kalman filter |
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