OpenViBE forumhttp://openvibe.inria.fr/forum/ PSD estimate through Welch's methodhttp://openvibe.inria.fr/forum/viewtopic.php?f=3&t=9631 Page 1 of 1

 Author: don_matti [ Mon Apr 25, 2016 8:46 pm ] Post subject: PSD estimate through Welch's method Hello,Just wondering if anyone would benefit from Power Spectral Density estimation in OpenViBE.I have found yet option with Welch windowing in Connectivity Measure box, but it is not the same imho. So far, OpenViBE supports FFT - Power Spectral Analysis and it could be more extended by mentioned algorithm.Here's some useful links about this method:http://www.mathworks.com/help/signal/ref/pwelch.html,https://en.wikipedia.org/wiki/Welch's_method.Thanks in advance for response!Cheers,Matt

 Author: Jeff_B [ Tue Apr 26, 2016 3:41 pm ] Post subject: Re: PSD estimate through Welch's method Hi Matt,I had the same idea while using the itpp library for the SpecCSP algorithm the Welch estimator is already implemented (see ITPP_EXPORT vec itpp::spectrum() at http://itpp.sourceforge.net/4.3.1/group__sigproc.html), and some other PSD estimators could also be among the options of such a box:- like autoregressive Yule-Walker estimation (thanks to itpp::yulewalk for exemple).- like Burg estimator (see in OV: ovpCAlgorithmARBurgMethod) Jeff

 Author: elcinobacone [ Wed May 18, 2016 10:00 am ] Post subject: Re: PSD estimate through Welch's method Hi, we have a small group of neuroscience researchers and We would to know how calculate DSP signal about beta e theta bands. We're making an algorithm on OpenVibe designer but We don't know how integrate the function " ITPP_EXPORT vec itpp::spectrum()" implementing Welch method . We are not a programmers ...Can you help us?