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于 2013-06-02 发布 文件大小:307KB
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说明:  提出了一种结合SVD的小波变换方法,对其在外弹道测量数据中的野值剔除进行了研究。对观测数据进行小波分解,将小波分解后的近似分量和细节分量组合实现相空间重构,作为SVD方法的输入观测矩阵,根据奇异 熵增量准则,对奇异值进行筛选,根据SVD逆变换重构原信号。这一方法克服了Hankel矩阵相空间构建方法数据 端点失真问题。以小波分解后分量重构的相空间可以满足正交性,进一步提高了SVD进行数据降噪和野值检测的精度。仿真数据和试验数据处理结果证明了这一方法的有效性。(Proposed a method of combining the SVD wavelet transform its outer ballistic measurement data in excluding outliers were studied. Observational data on wavelet decomposition, wavelet decomposition of the approximate combined component and detail component to achieve the phase space reconstruction, as the input observation matrix SVD method, based on singular entropy increment standards, singular value filter, according to the inverse transform heavy SVD structure of the original signal. This approach overcomes the Hankel matrix phase space construction method data endpoint distortion. Wavelet decomposition component of reconstruction phase space satisfy orthogonality, to further improve the SVD for data noise reduction and outlier detection accuracy. Simulation data and experimental data processing results prove the effectiveness of this approach.)

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61.pdf,318460,2013-01-31

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  • T23825744rwth
    这是小波包程序,好不容易从网上下下的,希望对大家有用!可直接使用。 (Wavelet packet, and finally from the Internet under the hope that useful! Can be used directly.)
    2012-07-25 06:27:18下载
    积分:1
  • tztqzheng1
    EEG采集脑电波,然后用小波变换分析睁眼时产生脑电波的频率及各项数据(EEG brain waves collected and then analyzed using wavelet transform eyes when the frequency of brain waves generated and the data)
    2010-05-12 18:47:13下载
    积分:1
  • 40
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    2009-10-21 11:37:34下载
    积分:1
  • wvd
    这是一个轴承故障分解程序,给予小波变换,小波去噪,小波重构与EMD相结合,有时频谱,边际谱,功率谱(This is a to bearing failure decomposition program given wavelet transform, wavelet denoising wavelet reconstruction combined with EMD, sometimes the spectrum, marginal spectrum, power spectrum)
    2012-11-26 15:15:09下载
    积分:1
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    此程序能实现基于小波变换的一次图像压缩。(the program can implement once image compressiom by wavelet-based transform )
    2005-09-01 23:00:24下载
    积分:1
  • matlab_EZW
    嵌入式小波图像编码即EZW是最近很流行的一种编码方式,我的程序是用matlab实现对EZW的描述。(Embedded Wavelet EZW image coding that is very popular recently as a way of coding, I use the matlab process is to achieve a description of the EZW.)
    2020-11-30 15:59:27下载
    积分:1
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    2012-06-14 20:45:32下载
    积分:1
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    关于利用离散余弦变换DCT的jpeg压缩的matlab源程序,简单实用,也有注释,很好读。(on the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time.)
    2006-07-06 19:10:39下载
    积分:1
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    介绍傅立叶变换的漫画,不是大量公式叙述或证明,简洁生动,易于理解。(The caricature that introduces Fourier transform, is not a lot of formula narration or proof, concise and vivid, easy to understand.)
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    2013-07-14 23:13:22下载
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