| 一种基于非线性跟踪-微分器的角加速度估计方法 |
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| 引用本文： | 邵雷,赵锦,赵宗宝,李炯.一种基于非线性跟踪-微分器的角加速度估计方法[J].飞行力学,2012,30(4):341-344. |
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| 作者姓名： | 邵雷 赵锦 赵宗宝 李炯 |
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| 作者单位： | 1. 空军工程大学导弹学院,陕西三原,713800
2. 西安理工大学自动化学院,陕西西安,710048 |
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| 摘 要： | 针对仅能获取角度信息的角加速度估计问题,基于卡尔曼滤波和非线性跟踪-微分器设计了一种角加速度估计算法。该算法利用卡尔曼滤波得到角速度的估计值,并以此为基础采用非线性跟踪-微分器对角加速度进行估计,通过对卡尔曼滤波与跟踪-微分器角加速度估计进行合理融合获得最终的角加速度输出。仿真结果表明,所设计的估计方法能满足视线角加速度的估计精度要求,具有一定的工程应用价值。
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| 关 键 词： | 卡尔曼滤波 跟踪-微分器 估计 非线性 |
A nonlinear tracking-differentiator based LOS-angle acceleration estimation method |
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| SHAO Lei
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ZHAO Jin
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ZHAO Zong-bao
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LI Jiong.A nonlinear tracking-differentiator based LOS-angle acceleration estimation method[J].Flight Dynamics,2012,30(4):341-344. |
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| Authors: | SHAO Lei ZHAO Jin ZHAO Zong-bao LI Jiong |
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| Institution: | 1 (1.Missile Institute,Air Force Engineering University,Sanyuan 713800,China; 2.Institute of Automation,Xi’an University of Technology,Xi’an 710048,China) |
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| Abstract: | A Kalman filter and nonlinear tracking-differentiator based LOS-angle acceleration estimation method was proposed to deal with the problem of LOS-angle acceleration estimation which can only get angle information.The proposed algorithm first takes the Kalman filter based LOS-angle velocity estimation as the input of the nonlinear tracking-differentiator to get the estimation of LOS-angle acceleration,and then fusing the estimation with the Kalman filter based LOS-angle acceleration.Simulation results show that the proposed method meets the of precision estimation requirements of line of sight acceleration,which has a certain engineering application value. |
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| Keywords: | Kalman filter tracking-differentiator estimation nonlinear |
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