资源简介
emd分解,通过emd分解重构信号实现降噪
代码片段和文件信息
%EMD computes Empirical Mode Decomposition
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% Syntax
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% IMF = EMD(X)
% IMF = EMD(X...‘Option_name‘Option_value...)
% IMF = EMD(XOPTS)
% [IMFORTNB_ITERATIONS] = EMD(...)
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% Description
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% IMF = EMD(X) where X is a real vector computes the Empirical Mode
% Decomposition [1] of X resulting in a matrix IMF containing 1 IMF per row the
% last one being the residue. The default stopping criterion is the one proposed
% in [2]:
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% at each point mean_amplitude < THRESHOLD2*envelope_amplitude
% &
% mean of boolean array {(mean_amplitude)/(envelope_amplitude) > THRESHOLD} < TOLERANCE
% &
% |#zeros-#extrema|<=1
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% where mean_amplitude = abs(envelope_max+envelope_min)/2
% and envelope_amplitude = abs(envelope_max-envelope_min)/2
%
% IMF = EMD(X) where X is a comp
属性 大小 日期 时间 名称
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文件 22273 2015-12-22 15:58 emd.m
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22273 1
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