| 基于一种新型小波阈值函数的信号去噪 |
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| 引用本文： | 缑新科,郭天圣. 基于一种新型小波阈值函数的信号去噪[J]. 西北师范大学学报(自然科学版), 2010, 46(1): 51-54 |
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| 作者姓名： | 缑新科 郭天圣 |
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| 作者单位： | 兰州理工大学电气工程与信息工程学院,甘肃兰州730050 |
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| 摘 要： | 在小波硬阈值函数和软阈值函数的基础上,提出了一种新阈值函数.该函数综合了硬阈值函数和软阈值函数的特征,并且具有良好的数学特征.选择合适的参数,其可以适应不同的情况.采用局部阈值规则选择阈值,通过仿真实验,验证了新阈值函数对去除高斯噪声的有效性.
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| 关 键 词： | 小波 阈值 新阈值函数 去噪 |
Signal denoising based on a new threshold function of wavelet |
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| GOU Xin-ke,GUO Tian-sheng. Signal denoising based on a new threshold function of wavelet[J]. Journal of Northwest Normal University Natural Science (Bimonthly), 2010, 46(1): 51-54 |
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| Authors: | GOU Xin-ke GUO Tian-sheng |
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| Affiliation: | GOU Xin-ke,GUO Tian-sheng(College of Electrical , Information Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China) |
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| Abstract: | In order to overcome the shortcomings of hard threshold function and soft threshold function of wavelet,a new threshold function is presented in this paper.This function combines hard threshold function and soft threshold function,which has good mathematical properties.It can be used in various cases of denoising by selecting suitable parameters.Select the threshold by using the local threshold rule,emulation results and comparative studies show the effectiveness of new threshold function removing Gaussian ... |
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| Keywords: | wavelet threshold new threshold function denoising |
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