| 摘要 |
This invention relates to an envelope elimination and restoration device having an input terminal for processing an input signal comprising an inphase signal and a quadrature signal. The envelope elimination and restoration device comprises: a signal pre-processing device, which comprises a first path for processing the envelope of said input signal, and a second path for processing the phase of said input signal, said first path comprising a digital envelope extractor receiving said inphase and quadrature signals, and said second path comprising an intermediate frequency upconverter, receiving said input signal, and generating an intermediate frequency signal comprising said inphase and quadrature signals, and a digital clipping unit receiving said intermediate frequency signal; a power control signal source having an input connected to an output of said envelope extractor; a radio frequency upconverter connected to said digital clipping unit; and a power amplifier having an input, which is connected to an output of said radio frequency upconverter, a power control input, which is connected to an output of said power control signal source, and an output.
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