| 基于LabVIEW的小波阈值融合算法去噪分析 |
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| 引用本文： | 李博,吴伟,周密.基于LabVIEW的小波阈值融合算法去噪分析[J].西安石油大学学报(自然科学版),2010,25(2). |
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| 作者姓名： | 李博 吴伟 周密 |
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| 作者单位： | 1. 西安石油大学,机械工程学院,陕西,西安,710065
2. 陕西华达科技有限公司,陕西,西安,710065 |
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| 基金项目： | 陕西省教育厅自然科学研究项目"陕北油田油气长输管道泄漏研究" |
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| 摘 要： | 采用小波变换进行信号分解处理,通过分析阈值去噪所用的小波尺度及阈值选择法,提出选取BayesShrink自适应阈值估计,构建基于软、硬阈值折衷法和一种新阈值函数的多算法融合阈值处理方法.利用Matlab仿真实验分析该方法的可行性和有效性,在LabVIEW环境下进行实际工程信号的去噪测试.实例分析表明,该方法的主要优点在于它对随机强噪声的降噪效果明显.
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| 关 键 词： | 小波阈值去噪 算法融合 虚拟仪器 LabVIEW |
Research of a wavelet threshold multi-algorithm integrating denoising method based on LabVIEW |
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| LI Bo,WU Wei,ZHOU Mi.Research of a wavelet threshold multi-algorithm integrating denoising method based on LabVIEW[J].Journal of Xian Shiyou University,2010,25(2). |
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| Authors: | LI Bo WU Wei ZHOU Mi |
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| Institution: | LI Bo1,WU Wei1,ZHOU Mi2(1.College of Mechanical Engineering,Xi\'an Shiyou University,Xi\'an 710065,Shaanxi,China,2.Shaanxi Huada Technology Co.Ltd.,China) |
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| Abstract: | Wavelet transform is used to decompose source signal.It is suggested that the self-adapted threshold estimation based on Bayes Shrink should be used for establishing a modified threshold processing method based on soft and hard threshold compromise method and a new threshold function.The feasibility and the availability this method are verified by Matlab simulation experiments.The simulation results show that the denoising result of this multi-algorithm integrating threshold denoising method is better than ... |
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| Keywords: | LabVIEW |
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