Reducing a peak-to-average ratio of a signal

Details Reducing a peak-to-average ratio of a signal Reducing a peak-to-average ratio of a signal

2007-01-03

2010-10-26

Tran, Khai (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

07822131

ABSTRACT:
Methods and corresponding systems for reducing a peak-to-average signal ratio include determining peak and null samples of a symbol. Thereafter, an error signal is calculated that is responsive to the peak and null samples. In one embodiment the error signal has values corresponding to differences between the peak samples and a high threshold and the null samples and a low threshold. In response to the error signal, a reserved tone set of time-domain samples are produced and added to a user data set of time-domain samples. The error signal can also be used to adapt a filter for filtering samples of a symbol.

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