Blackman-Tukey method BT Method: (1Bartlett window ww=1-图 for k|≤M w(k)=0 for k≥M. The Fourier transform of the Bartlett window,w(f),is obtained from wn-0m》
Blackman-Tukey method BT Method: (1)Bartlett window
Blackman-Tukey method BT Method:Parzen window The time domain representation of the Parzen window is described by =2(1-)-(1-2》 fr内s兰 w=2(1-) w(k)=0 for k>M. The Fourier transform of the Parzen window can be estimated as w)= 8(3sin4πf(Mf2) sin4πf(M/2) 2sin4πf sin2πf
Blackman-Tukey method BT Method: Parzen window
Periodogram Applications Analysis of Auditory Evoked Potentials(AEPs)Using Periodogram Analysis of Heart Rate Variability Using Periodogram Prediction of probable genes by Fourier analysis of genomic sequences
Periodogram Applications • Analysis of Auditory Evoked Potentials(AEPs) Using Periodogram • Analysis of Heart Rate Variability Using Periodogram • Prediction of probable genes by Fourier analysis of genomic sequences
Analysis of Auditory Evoked Potentials(AEPs)Using Periodogram 1.Motivation Pure tone is used to test neural hearing loss; Understanding the neurophysiology of the auditory system Improving the existing method
Analysis of Auditory Evoked Potentials(AEPs) Using Periodogram 1. Motivation # Pure tone is used to test neural hearing loss; # Understanding the neurophysiology of the auditory system # Improving the existing method
Analysis of Auditory Evoked Potentials(AEPs)Using Periodogram 2.Principle (1)Hearing system; y(n)=x(n)*h(n)in the time domain Y(f)=X(f)H(f)in the frequency domain. H(f)=Y(f)/X(f)=S(f)/S(f) IS(f)川 i(f)5(( 0≤y≤1
Analysis of Auditory Evoked Potentials(AEPs) Using Periodogram 2. Principle (1) Hearing system;