| 肖毅,杨绍清,章新华,茆明,穆松.基于滑动窗口子空间的混沌信号降噪算法[J].,2007,26(1):23-28 |
| 基于滑动窗口子空间的混沌信号降噪算法 |
| A new noise reduction algorithm for chaotic data based on sliding window subspace projection |
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| 中文摘要: |
| 基于子空间投影理论,利用混沌信号特性,提出了一种基于滑动窗口子空间投影的混沌信号降噪算法,通过相空间重构和多次迭代运算,较好地解决了低信噪比下的混沌信号降噪问题。对算法的复杂性作了研究,并对重构维数、延迟时间、迭代次数等参数的选择进行了讨论。利用Lorenz模型进行仿真得到了比较好的效果,与传统算法相比,新算法具有降噪效果较好、局部特性损失较少、精度较高等优点。 |
| 英文摘要: |
| Presents a new noise reduction algorithm combing sliding window subspace projection with spatial-reconstruction and iterative operations,studing the complexity of the algorithm,as well as the reconstruct dimensions,delay time,the times of iteration; making use of the Lorenz Model systems simulation to test the new algorithm which has some advantages over the traditional algorithm such as good reduction result,well saved local properties,less distortion. |
| DOI：10.11684/j.issn.1000-310X.2007.01.005 |
| 中文关键词: 子空间投影 滑动窗口 相空间重构 迭代运算 |
| 英文关键词: Subspace projection Sliding window Spatial-reconstruction Iterative operation |
| 基金项目:国防“十五”预研基金项目(项目编号：51403050404JB1601) |
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