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Dependencies:   HIDScope mbed MODSERIAL QEI

EMG.cpp

Committer:
john111222333
Date:
2017-10-17
Revision:
7:c17f5473f4e1
Parent:
6:452e301a105a
Child:
11:dd1976534a03

File content as of revision 7:c17f5473f4e1:

#include "EMG.h"


EMG::EMG(PinName data) : _data(data) , MainsReject(0.940809296, -1.525271192, 0.940809296, 1.000000000, -1.525271192, 0.881618592) , 
                                        Low_pass( 0.145323884, 0.290647768, 0.145323884, 1.000000000, -0.671029091, 0.252324626)  ,
                                        HiPass(0.914969144, -1.829938288, 0.914969144, 1.000000000, -1.822694925, 0.837181651) , 
                                        LoPass( 0.003621682, 0.007243363, 0.003621682, 1.000000000, -1.822694925, 0.837181651)
{
    cntr = 0;
           


}
double EMG::get_notch(double data){
    
    
    
    return MainsReject.step(data);
    
}
    
    
double EMG::get_noise(){
   
   
    
    return Low_pass.step(_data);
}
    
    
double EMG::get_DC(double data){
    
    
    
    return HiPass.step(data);
    
}
    
    
double EMG::get_absolute(double data){
    
    return abs(data);
    
    
}
    
    
double EMG::get_envelope(double data){
    
   
    
    return LoPass.step(data);
}
    
double EMG::filter(){
    
    if(cntr<=500)
    {
        cntr++;
        return 0;
    }
    else
    {
        return get_envelope(get_absolute(get_DC(get_notch(get_noise()))));
    }
    
}