BVP_filter_basic.m

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%This file is part of TEAP.
%
%TEAP is free software: you can redistribute it and/or modify
%it under the terms of the GNU General Public License as published by
%the Free Software Foundation, either version 3 of the License, or
%(at your option) any later version.
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%TEAP is distributed in the hope that it will be useful,
%but WITHOUT ANY WARRANTY; without even the implied warranty of
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%GNU General Public License for more details.
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%You should have received a copy of the GNU General Public License
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% 
%> @file BVP_filter_basic.m
%> @brief Cleans a signal adding a low-pass median filter to it. The window equals the
%> sample rate, aka 1 sec.
%> @param  BVPsignal: the @b BVP signal.
%> @retval  Signal: the filtered @b BVP signal
%
%> @author Copyright Frank Villaro-Dixon, 2014
function BVPsignal = BVP_filter_basic(BVPsignal)
 
 
%Make sure we have a BVP signal
BVPsignal = BVP__assert_type(BVPsignal);
 
sampRate = Signal__get_samprate(BVPsignal);
 
BVPsignal = Signal_filter1_low_median(BVPsignal, sampRate/8); %FIXME: sampRate seems to be far too much filtering, temporarily changed to /8