| 基于区间正交小波变换的多尺度实时Kalman滤波器设计 |
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| 引用本文： | 时伟,陈建群.基于区间正交小波变换的多尺度实时Kalman滤波器设计[J].中南大学学报(自然科学版),2011(9). |
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| 作者姓名： | 时伟 陈建群 |
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| 作者单位： | 中南大学粉末冶金研究院;中南大学航空航天学院; |
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| 基金项目： | 国家高技术研究发展计划(“863”计划)项目(2009AA034303); 湖南省自然科学基金资助项目(11JJ3064); 中南大学中央高校基本科研业务费专项(2011QNZT048) |
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| 摘 要： | 针对导航系统中惯性元器件的降噪问题,设计一种基于区间正交小波变换的多尺度实时Kalman滤波算法。该算法利用区间正交小波变换抑制边界效应的能力及其滑动数据窗口内实时分解特性,建立动态系统的多尺度实时Kalman滤波框架。Allan方差分析结果表明:在陀螺信号滤波中,给定小波分解尺度,该算法在保持一定实时性的同时,可以取得较好的滤波效果,滤波后的噪声系数比标准Kalman滤波减少至少1个数量级。
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| 关 键 词： | 惯性元件 降噪 区间正交小波变换 卡尔曼滤波 实时性 |
Design of multi-scale real-time Kalman filtering based on interval orthogonal wavelet transform |
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| SHI Wei,CHEN Jian-qun.Design of multi-scale real-time Kalman filtering based on interval orthogonal wavelet transform[J].Journal of Central South University:Science and Technology,2011(9). |
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| Authors: | SHI Wei CHEN Jian-qun |
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| Institution: | SHI Wei1,2,CHEN Jian-qun2 (1.Powder Metallurgy Research Institute,Central South University,Changsha 410083,China,2.School of Aeronautics and Astronautics,China) |
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| Abstract: | To solve the practical problem of inertial components de-noising in INS,a multi-scale real-time Kalman filtering based on interval orthogonal wavelet transform was proposed.With the ability of the interval wavelet transform to restrain terrible edge effects and its real-time decomposition characteristics in a sliding data window,a multi-scale dynamic systems framework for real-time Kalman filter was established.The results show that under the condition of given wavelet decomposition scale,the algorithm,whil... |
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| Keywords: | inertial components de-noising interval orthogonal wavelet transform Kalman filtering real-time |
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