00001 00002 /* 00003 * This file is part of EKG/gEKG, a software package to record EKG. 00004 * Copyright © 2003 Lars Stollenwerk 00005 * 00006 * This program is free software; you can redistribute it and/or modify it 00007 * under the terms of the GNU General Public License as published by the 00008 * Free Software Foundation; either version 2 of the License, or (at your 00009 * option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, but 00012 * WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License along 00017 * with this program; if not, write to the Free Software Foundation, Inc., 00018 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00019 * 00020 */ 00021 00022 #ifndef EKGHFILTER_H 00023 #define EKGHFILTER_H 00024 00025 #include <string> 00026 #include <cmath> 00027 #include "calibrate.h" 00028 #include "EKGfilter.h" 00029 using namespace std; 00030 00057 class EKGhfilter : public EKGfilter 00058 { 00059 public: 00063 EKGhfilter() 00064 { 00065 setHTimeConstant( 0.3 ); 00066 Ha[0] = Ha[1] = Ha[2] = 0; 00067 } 00073 float setHTimeConstant( float x ); 00075 float getHTimeConstant() { return EKG_TimeStep / Ht; } 00088 virtual void input( float * d ); 00089 private: 00090 // ---------------------------------------------------------------------- 00091 // Hochpaß 00092 // ---------------------------------------------------------------------- 00093 00095 float Ht; 00097 float Ha[3]; 00098 }; 00099 00100 #endif