power spectral density

[macthenite1_ECG]

Does anybody know how to obtain the power spectral density of an array by using the AR (autoregressive) estimation rather than by FFT?

[abhisheknag]

Hello macthenite1_ECG,

Hope this reply does not come too late.

The LabVIEW Advanced SIgnal Processing Toolset has VIs (also an Express VI) that allows you to view the PSD calculated using AR method. Many other methods like Periodogram, ARMA, MUSIC and Welch are also supported. You can find more details at - http://sine.ni.com/nips/cds/view/p/lang/en/nid/1395.

Hope this helps!

Regards,

Abhishek

[JLS]

Hello,

If you're considering implementing this, the following may be useful:

Autoregressive Modeling

http://www.clecom.co.uk/science/autosignal/help/Autoregressive_Modeling.htm

Best Regards,

JLS