| 一种新的针对模型误差所致滤波发散的补偿方法 |
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| 引用本文： | 刘庆刚,陈林元.一种新的针对模型误差所致滤波发散的补偿方法[J].指挥控制与仿真,2012,34(3):95-101. |
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| 作者姓名： | 刘庆刚 陈林元 |
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| 作者单位： | 1. 海司信息化部,北京,100084
2. 江苏自动化研究所,江苏连云港,222006 |
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| 摘 要： | 系统模型误差是导致卡尔曼滤波发散的一个很重要的原因,分析了衰减记忆法和限定记忆法两种对模型误差所致滤波发散的补偿方法,通过引入阈值可以将这两种方法进行有机结合,给出了一种新的衰减限定记忆算法。算例分析验证了衰减限定记忆算法在抑制滤波发散方面具有比衰减记忆和限定记忆法更好的性能,并能自适应调整算法所需观测数据数目。
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| 关 键 词： | 衰减限定记忆法 衰减记忆法 限定记忆法 滤波发散 模型误差 |
| 修稿时间： | 5/3/2012 5:45:35 PM |
A New Compensation Method For Filtering Divergence Caused By Model Errors |
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| Liu Qing-gang and chenlinyuan.A New Compensation Method For Filtering Divergence Caused By Model Errors[J].Command Control & Simulation,2012,34(3):95-101. |
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| Authors: | Liu Qing-gang and chenlinyuan |
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| Institution: | Navy Command Informationization Department,Jiangsu Automation Research Institute |
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| Abstract: | Model errors is a main cause of Kalman Filtering divergence.Two compensation methods for filtering divergence are analysed in this paper. A new algorithm named fading-limited memory is proposed through introducing a threshold to combined these two methods. A numerical example testify that the new algorithm has a better performance in compensating filtering divergence caused by model errors, and it can choose measurements adaptively. |
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| Keywords: | Fading-limited memory fading memory limited memory filtering divergence model errors |
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