| 信号Lipschitz奇异性的计算与分析 |
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| 引用本文： | 岑翼刚,岑丽辉,孙德宝. 信号Lipschitz奇异性的计算与分析[J]. 计算机工程与应用, 2004, 40(18): 35-36,53 |
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| 作者姓名： | 岑翼刚 岑丽辉 孙德宝 |
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| 作者单位： | 华中科技大学控制科学与工程系,武汉,430074;上海交通大学电子信息与电气工程学院,上海,200030 |
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| 摘 要： | 该文从Lipschitz奇异性的定义出发,根据信号与噪声的奇异性指数α的不同,推导出了小波变换系数点是噪声点还是信号点的判别法,也为计算Lipschitz指数提供了一个简单可靠的方法。仿真结果证明,该方法对于信号去噪能起到良好的效果。
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| 关 键 词： | Lipschitz指数 去噪 奇异性分析 |
| 文章编号： | 1002-8331-(2004)18-0035-02 |
The Calculation and Analysis of Signal's Lipschitz Singularities |
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| Cen Yigang Cen Lihui Sun Debao. The Calculation and Analysis of Signal's Lipschitz Singularities[J]. Computer Engineering and Applications, 2004, 40(18): 35-36,53 |
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| Authors: | Cen Yigang Cen Lihui Sun Debao |
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| Affiliation: | Cen Yigang 1 Cen Lihui 2 Sun Debao 11 |
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| Abstract: | In this paper,we get the discriminance which can distinguish the noise point and the signal point of wavelet coefficients based on the definition of Lipschitz singularity and the differential of signal singularities and noise singularities.It provides a simple and dependable method for the Lipschitz exponent calculation.Proved by the simulation,this method can get better result of de-noising and reliable. |
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| Keywords: | Lipschitz exponent de-noising singularities analysis |
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