Sampling                                                                                                                                                                                                                        
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
               Signal1                                                                                                                                                                                                                         
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                      0                                                                                                   1                                                                   1
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
               1                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
               0                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                     0                                           50                                           100                                                                                              200