資源簡介
利用AR模型和Lomb算法的心率變異性分析。
代碼片段和文件信息
clear?all
rr2=load(‘D:\1001.txt‘);
%?[rr_statdetr]?=?detrend(rr2301000)
N=length(rr2);
mean2=mean(rr2)/1000;
mhrf=1/mean2;
[ae]=arburg(rr210);
[Pf]=pburg(rr210[2048][mhrf]);
%?P(1)=P(2)
%?plot(f10*log10(P))
figure
plot(f10*log10(P))
%?figure
%?plot(log(f)log(P)‘-*‘)
%?[v?lf?hf]?=?lfhf(P);
%?v
%?lf
%?hf
space=f(2)-f(1);
ivf=find((0<=f)&(f<0.04))
ilf?=?find(?(0.04?<=?f)?&?(f?<=?0.15)?);
ihf?=?find(?(0.15??Pvlf=sum(P(ivf)*space)
Plf?=?sum(P(ilf))*space
Phf?=?sum(P(ihf))*space
Ptf=Pvlf+Plf+Phf
v?=?Plf/Phf;
%?m?=?mean(rr);
%?lambda?=?30;
%?I?=?speye(N);
%?D2?=?spdiags(ones(N-21)*[1?-2?1][0:2]N-2N);
%?M?=?I-inv(I+lambda^2*D2‘*D2);
%?rr_stat?=?(I-inv(I+lambda^2*D2‘*D2))*rr;
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-07-27?05:22??Frequency_HRV\
?????文件?????????760??2014-07-27?05:21??Frequency_HRV\AR.m
?????文件????????2368??2011-10-11?22:13??Frequency_HRV\lomb.m
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