How to evaluate Heart Rate Variavirit​y with AR model

[yosukeT]

Hello

I need help.

I'm Japanese college student.I'm using LabVIEW2010 pro ver for study.

Now I'm trying to evaluate Heart Rate Variabirity (HRV) from RR interval with AR model in LabVIEW Advance Signal Processing Toolkit.

Already I can calculated Power Spectrum Density(PSD) with AR model.

And I have known the page 'Using LabVIEW for Heart Rate Variability Analysis'

However I'd like to eveluate HRV using dominant peak component within the corresponding LF and HF band' . (HRV with AR.jpg)

I have no idea for taking as 'dominant peak component within the corresponding LF and HF band'.

(reference; http://www.cinc.org/archives/2007/pdf/0017.pdf#sea​rch='variation of HRV analysis in')

Please give me a solution.

[ZJ.Gu]

Hi,

In Advanced Signal Processing Toolkit, you could find a AR modeling function which could provide the AR coefficients directly. You could analyze the cofficients via its roots. Then you could find the domininant frequency as you like.

Thanks!

ZJ Gu

[yosukeT]

Hello.

Thank you for your reply, ZJ Gu

Thanks to you, I could analyze AR coefficients .

And I have tried  fitting  dominant pesk component coresponding to LF and HF band.

However I don't know  how to fitting that with AR coefficients.

My apologies in advance for the newbie question.

Sincerely.

yosukeT