| 气液两相管流流型信号的小波去噪处理 |
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| 引用本文： | 顾春来,董守平. 气液两相管流流型信号的小波去噪处理[J]. 北京科技大学学报, 2002, 24(1): 76-78. DOI: 10.3321/j.issn:1001-053X.2002.01.023 |
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| 作者姓名： | 顾春来 董守平 |
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| 作者单位： | 石油大学机电工程学院,北京,102249 |
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| 摘 要： | 流型信号能够反映气液两相管流的流动特征,它们往往会伴随着各种随机噪声.为此建立了一座气液两相流的综合试验装置,提取气液两相管流的流型信号.采用小波变换对信号样本的进行多尺度分解,利用信号和噪声在不同尺度上的特性把它们区分开来,消除噪声后再对信号进行重构,得到了较好的去噪效果.
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| 关 键 词： | 气液两相流 流型 小波变换 去噪 |
| 修稿时间： | 2001-03-12 |
Wavelet Denoising Treatment of Flow Pattern Signals in Liquid-gas Two Phase Flow Pipelines |
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| GU Chunlai,DONG Shouping. Wavelet Denoising Treatment of Flow Pattern Signals in Liquid-gas Two Phase Flow Pipelines[J]. Journal of University of Science and Technology Beijing, 2002, 24(1): 76-78. DOI: 10.3321/j.issn:1001-053X.2002.01.023 |
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| Authors: | GU Chunlai DONG Shouping |
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| Abstract: | Liquid-gas two phase flow can be characterized by its flow pattern signals, which are offen with some random noises. A general two phase flow experimental facility is set up to obtain flow pattern signals in two phase flow pipes. Flowing signals are decomposed with Daubechies wavelets to differ the noises from flow pattern signals. The denoised signals are quite well after reconstruction. |
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| Keywords: | liquid-gas two phase flow flow pattern wavelet transform denoise |
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