| 一种基于过程噪声控制的弹道滤波方案 |
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| 引用本文： | 常思江,王中原,韩成辉.一种基于过程噪声控制的弹道滤波方案[J].空军工程大学学报,2011,12(1):51-54. |
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| 作者姓名： | 常思江 王中原 韩成辉 |
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| 作者单位： | 常思江,王中原,CHANG Si-jiang,WANG Zhong-yuan(南京理工大学动力工程学院,江苏,南京,210094);韩成辉,HAN Cheng-hui(中国兵器工业第二○八研究所,北京,102202) |
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| 摘 要： | 弹道滤波是精确获取弹箭飞行弹道参数的关键技术之一.当采用卡尔曼滤波进行弹道滤波时,系统模型偏差可能导致滤波精度的降低.以某低旋尾翼弹为对象,对此问题进行了研究.提出一个较精确且便于工程应用的扩展质点弹道模型,由此建立了弹箭飞行状态方程;在坐标雷达体制下建立了量测方程;仿真分析了系统模型偏差对弹道滤波性能的影响,并提出一个基于过程噪声控制的弹道滤波方案.仿真结果表明:该方案可有效克服模型偏差的不利影响,弹箭侧偏的估计误差可减小50%以上,且系统计算量增加较少.研究结果可为弹道滤波的工程应用提供一定的参考.
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| 关 键 词： | 弹箭 状态估计 卡尔曼滤波 弹道模型 过程噪声 |
Investigation on a Scheme for Trajectory Filtering Based on Process Noise Control |
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| CHANG Si-jiang,WANG Zhong-yuan,HAN Cheng-hui.Investigation on a Scheme for Trajectory Filtering Based on Process Noise Control[J].Journal of Air Force Engineering University(Natural Science Edition),2011,12(1):51-54. |
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| Authors: | CHANG Si-jiang WANG Zhong-yuan HAN Cheng-hui |
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| Institution: | CHANG Si-jiang1,WANG Zhong-yuan1,HAN Cheng-hui2(1.School of Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China,2.Research Institute 208 of China Ordnance Industry,Beijing 102202,China) |
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| Abstract: | The estimation of flight state for guided projectiles is one of the most critical techniques in obtaining precise trajectory parameters.When Kalman filtering is used,the system model deviation may cause reduction of the filtering accuracy significantly.In this paper the foregoing problem is investigated by taking a type of fin-stabilized projectiles with low spin speed as object.An Extended Point-Mass Model(EPMM) is proposed.Based on the EPMM and radar detecting system,the state equation and measurement equ... |
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| Keywords: | projectiles state estimation Kalman filtering trajectory model process noise |
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