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1/f类分形信号基于小波变换的消噪 被引量:2

The De-noising of the 1/f-Type Fractal Signal Based on the Wavelet Transform
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摘要 将正交小波下的分形信号处理方法应用于 B样条小波和双正交小波 ,估计淹没在加性高斯白噪声中的 1/ f类分形信号 ,并通过计算机仿真 ,证明了其方法的有效性和可行性。 A method of the fractal signal processing in the orthogonal wavelet is applied to the B spline wavelet and biorthogonal wavelet. The author estimates the 1/f type fractal signal embedded in additional white Gaussian noise. The computer simulation testifies its effectiveness and viability .
作者 陈善学
机构地区 重庆邮电学院
出处 《重庆邮电学院学报(自然科学版)》 2001年第1期62-64,共3页 Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
关键词 分形信号 1/f噪声 维纳滤波 小波变换 消噪 fractal signal 1/f noise Wiener filter wavelet transform
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参考文献5

  • 1[1] WORNELL G W,OJPPENHEIM A. Estimation of fractal signals from noisy measurements using wavelet[J]. IEEE Trans SP,1992,40(3):611-623.
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同被引文献7

  • 1SHAPIRO J M. Embeded image coding using zerotrees of wavelet coefficients [J]. IEEE Trans on Signal Processing, 1993, 41 (12) :3445-3462.
  • 2LEWIS A S, KNOWLES G. Image compression using the 2-D wavelet transform[J]. IEEE Trans on Image Processing, 1992,40(2) : 244-250.
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  • 4SHAPIRO J. Embeded image coding using zerotrees of wavelet coefficients [ J]. IEEE Trans on Signal Processing, 1993,41 (12) :3445-3462.
  • 5SAID A, PEARLMAN W. A new, fast, and efficient image codec based on set partitioning in hierarchical trees [J]. IEEE Trans On Circuit and System for VideoTechnology, 1996,6 (3): 243-250.
  • 6ANTONINI M, BARLAUD M, MATHIEU P, et al. Image codeing using wavelet transform [ J]. IEEE Trans on Image Processing, 1992,1 (2), 205-220.
  • 7赵军.图像的无损压缩[J].重庆邮电学院学报(自然科学版),2001,13(3):49-52. 被引量:10

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