資源簡介
這是一個使用希爾伯特黃變化提取心音包絡的程序
代碼片段和文件信息
%BOUNDARY_CONDITIONS_EMD??extends?an?extrema?set?to?limit?edge?effects?on?the?interpolations
%
%?
%?[TMINTMAXZMINZMAX]?=?BOUNDARY_CONDITIONS_EMD(INDMININDMAXTXZNBSYM)
%%??一種自適應波形匹配端點拓延法
%?輸入參數說明:??indmin??????極小值地址序列
%????????????????indmax??????極大值地址序列
%????????????????t???????????時間序列(時序)1:length(x)
%????????????????x???????????時間序列(值)
%
%?輸出參數說明:??tmin????極小值地址序列
%????????????????tmax????極大值地址序列
%????????????????zmin????極小值
%????????????????zmax????極大值
%
%?inputs:
%???-?INDMIN?INDMAX:?indices?of?minima?and?maxima?in?the?real?signal?X
%???信號的最大最小坐標
%???-?T:?sampling?times?1/360
%???-?X:?real?signal?in?which?INDMIN?and?INDMAX?are?the?indices?of?extrema
%???-?Z:?signal?which?values?are?interpolated?in?the?final?envelope
%???進行包絡最后一步的信號
%???-?NBSYM:?number?of?points?added?to?each?end
%
%?outputs:
%???-?TMIN?TMAX:?extended?sampling?times
%???-?ZMIN?ZMAX:?extended?“extrema“?set
%%?處理邊界條件(鏡像法)
%?use:
%???-?for?a?real?signal?X:???????????????????%?實數情況下,x?=?z
%?????[TMINTMAXZM
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????35096??2009-09-29?20:53??hilbert提取心音包絡\1.wav
?????文件??????34972??2009-09-29?20:53??hilbert提取心音包絡\2.wav
?????文件??????55402??2009-09-29?20:53??hilbert提取心音包絡\3.wav
?????文件??????63276??2009-09-29?20:53??hilbert提取心音包絡\4.wav
?????文件?????260396??2009-09-29?20:53??hilbert提取心音包絡\5.wav
?????文件??????79660??2009-09-29?20:53??hilbert提取心音包絡\6.wav
?????文件?????101164??2009-09-29?20:53??hilbert提取心音包絡\7.wav
?????文件??????44822??2009-09-29?20:53??hilbert提取心音包絡\8.wav
?????文件??????78636??2009-09-29?20:53??hilbert提取心音包絡\80.wav
?????文件??????22120??2009-09-29?20:53??hilbert提取心音包絡\a10.wav
?????文件???????4576??2009-09-29?20:53??hilbert提取心音包絡\boundary_conditions_emd.m
?????文件???????1170??2009-09-29?20:53??hilbert提取心音包絡\cubicspline.m
?????文件????????334??2009-09-29?20:53??hilbert提取心音包絡\dsrate.m
?????文件????????627??2009-10-26?21:59??hilbert提取心音包絡\DW.m
?????文件????????499??2009-09-29?20:53??hilbert提取心音包絡\DW2.m
?????文件???????1169??2009-09-29?20:53??hilbert提取心音包絡\EMD.asv
?????文件???????1169??2009-09-29?20:53??hilbert提取心音包絡\EMD.m
?????文件?????905216??2009-09-29?20:54??hilbert提取心音包絡\emd.ppt
?????文件???????2958??2009-09-29?20:54??hilbert提取心音包絡\fuben.m
?????文件????????523??2009-09-29?20:54??hilbert提取心音包絡\jianyan.m
?????文件???????1086??2009-09-29?20:54??hilbert提取心音包絡\Lz.asv
?????文件???????3646??2009-10-12?22:41??hilbert提取心音包絡\mengxian.asv
?????文件???????3592??2009-10-14?10:59??hilbert提取心音包絡\mengxian.m
?????文件????????846??2009-09-29?20:54??hilbert提取心音包絡\shuju.txt
?????文件????????336??2009-09-29?20:54??hilbert提取心音包絡\srate.m
?????文件????????882??2009-09-29?20:54??hilbert提取心音包絡\strtest.asv
?????文件????????951??2009-09-29?20:54??hilbert提取心音包絡\strtest.m
????..A.SH.??????7168??2009-09-29?20:54??hilbert提取心音包絡\Thumbs.db
?????文件????????554??2009-09-29?20:54??hilbert提取心音包絡\xinlv.m
?????文件?????194810??2009-09-29?20:54??hilbert提取心音包絡\一階IMF.bmp
............此處省略12個文件信息
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