公开(公告)号：US09705533B2

公开(公告)日：2017-07-11

申请号：US14961985

申请日：2015-12-08

Applicant: STMICROELECTRONICS (ROUSSET) SAS

Inventor： Mark Wallis

IPC: H04B1/00 ,  H04L5/00 ,  H04B3/54

CPC classification number: H04B1/0007 ,  H04B3/54 ,  H04B2203/5425 ,  H04L5/001

Abstract: A method includes digital/analog conversion of a digital signal modulated by information to provide a modulated initial analog signal having a crest factor greater than one, and amplification of the initial analog signal to provide an amplified modulated signal. A modulated channel analog signal derived from the modulated amplified analog signal is transmitted over a communications channel, with impedance of the communications channel varying during the transmission. The method further includes at least one determination during the transmission of a peak-clipping rate of the amplified analog signal over at least one time interval, and an adjustment of a level of the initial analog signal as a function of the determined peak-clipping rate.