Study of Adaptive Cancellation Technology Based on the Fractal Dimension Constraint
YANG Zhen
YANG Jianqiang
Abstract：This article describes the basic principles of the adaptive cancellation technology, analysis the advantages and disadvantages of the adaptive cancellation technology, and proposes some corresponding improvement methods about the shortcomings of the adaptive cancellation technology. Since the conventional adaptive cancellation techniques are realized by iteration and need some times to make sure the best parameters, so the starting position of the signal and the tail of the effective signal are not well convergence, thus affecting the filtering effect. The paper used the hausdorff dimension constrain the seismic signal. Firstly, the paper computes the hausdorff dimension of the original seismic signal, and then filters the random noise beyond of the effective signal and the random noise at the relative position in the referenced noise based on the difference of the hasusdorff dimension about the effective signal and random noise; secondly, the paper updates the seismic signal and referenced noise to be adaptive filter, and gains an optimized adaptive cancellation filter.
Keywords：Adaptive noise cancellationFractal DimensionLMSNLMS
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 76-81 )