| 脉动流速测量数据预处理 |
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| 引用本文： | 李银发,沈小雄. 脉动流速测量数据预处理[J]. 水道港口, 2008, 29(1): 68-71 |
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| 作者姓名： | 李银发 沈小雄 |
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| 作者单位： | 长沙理工大学,长沙,410076;长沙理工大学,长沙,410076 |
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| 摘 要： | 脉动流速数据的采集到应用,由于各种干扰因素的存在,一般都需要将测量数据进行预处理。针对水槽实验所测流速数据进行了分析处理,提出了一种由3σ准则、多项式逼近法、小波变换相结合的数据处理方法。结果表明,该方法对流速测量数据的处理效果良好。
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| 关 键 词： | 脉动流速 数据处理 小波变换 |
| 文章编号： | 1005-8443(2008)01-0068-04 |
| 修稿时间： | 2007-10-11 |
Fluctuating velocity data pretreatment |
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| LI Yin-fa,SHEN Xiao-xiong. Fluctuating velocity data pretreatment[J]. Journal of Waterway and Harbour, 2008, 29(1): 68-71 |
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| Authors: | LI Yin-fa SHEN Xiao-xiong |
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| Abstract: | Generally,fluctuating velocity data should be disposed for it was disturbed by a lot of factors during data acquisition.After the fluctuating velocity data of the water channel experiment was analyzed and disposed, a method of combing 3σ criterions,polynomial approximation and wavelet transform was presented in this paper.The results show that the method is effective in disposing fluctuating velocity data. |
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| Keywords: | fluctuating velocity data treatment wavelet transform |
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