Page 492 - Digital Signal and Image Processing Using MATLAB
P. 492

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                                           Abdominal                 Chest
                                                                   x p
                                              sensor  x v   h        sensor
                                                     v M
                                                            f       g
                                                 v F
                                                                  c M
                                                  k=1
                                                                      The mother
                                            The fetus  c F            heart
                                              heart


                                           
    M                      
 
  7   =
                                    1,000

                                     500

                                      0
                                         ECG mother
                                    −500
                                        0      500      1,000   1,500    2,000   2,500
                                      40
                                      20
                                      0
                                     −20
                                     −40
                                     −60  EKG fetus+mother
                                        0      500      1,000   1,500    2,000   2,500


                                 
     M       
     7   = =                 6  
                                    8


                                  +   	 
                
            
                        3

                                 =                   6 
                               
 
   8



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