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Complex Baseband Representation of Bandpass Signals  4.5

                          3




                          2



                          1




                          0
                        x c (t)


                         −1




                         −2



                         −3
                           0            0.5           1            0.5           2
                                               Normalized Time, f t
                                                             m
                      Figure 4.2 Plot of the bandpass signal for Example 4.1.




                                   Amplitude               Phase
                          2
                                                                 150
                                                                 100
                         1.5                                     50
                        Amplitude  1                             0      Phase, degrees




                         0.5                                     −50
                                                                 −100
                                                                 −150
                          0
                            0       0.5       1        0.5      2
                                        Normalized time
                      Figure 4.3 Plot of the amplitude and phase for Example 4.1.
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