Peak suppression of multi-carrier signal with different...

Details Peak suppression of multi-carrier signal with different... Peak suppression of multi-carrier signal with different...

2007-12-04

2007-12-04

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S296000, C375S297000, C455S114300, C455S114200, C455S114100, C455S127100, C455S571000, C330S149000, C330S107000, C330S136000

Reexamination Certificate

active

10782158

ABSTRACT:
A technique for peak suppression, phase and amplitude equalizer of multi-carrier signals with different modulation is described. The input to the multi-carrier power amplifier is modified by a peak suppression, phase and amplitude equalizer circuit prior to being applied to the amplifier. The peak suppression is applied to a multi-carrier signal with different modulations and bandwidth. After peak suppression each individual carrier is phase and amplitude equalized to maintain the properties of the multi-carrier signal. The phase equalizer maintain the timing property of the carriers and the amplitude equalizer maintain the modulation accuracy of the individual carriers. The input to the peak-to-average reduction circuit could be a baseband, an intermediate frequency (IF) or radio frequency (RF) signal. The peak-to-average reduction is performed in digital domain.

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