amp-latency-AR-test.zip -
Burg算法功率谱估计,采样点数nfft不会影响MAX值和位置.
s=data22(6,:)
s=s(50:150)
nfft=2048
fs=500 EEG
[px1,f1]=pburg(s,6,nfft,fs) figure
plot(f1,px1) title( CI——Burg算法功率谱估计 )
xlabel( Frequency(Hz) ) ylabel( Power )
IndMax=find(diff(sign(diff(px1)))<0)+1
MAX=px1(IndMax)
loc=f1(IndMax)
figure plot(f1,px1) title( CI——Burg算法功率谱估计 )
xlabel( Frequency(Hz) ) ylabel( Power )
hold on plot(loc(1),MAX(1), * )
hold on plot(loc(2),MAX(2), * )
hold on plot(loc(3),MAX(3), * )
,2014-03-04 10:37:13,下载16次