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公开(公告)号：US10425266B2
公开(公告)日：2019-09-24
申请号：US15560478
申请日：2016-04-07
Applicant: THALES
Inventor： Sylvain Traverso , Jean-Luc Rogier , Jean-Yves Bernier
Abstract: A method for reducing the peak factor of a signal transmitted in a frequency band comprising several channels, the signal using a plurality of channels in the band comprises: a step of clipping the signal, a step of subtracting the clipped signal from the signal, so as to obtain a peak signal, a step of filtering the peak signal with the aid of a multichannel filter configured to comply with a predetermined spectral mask for each of the channels used by the signal, and a step of subtracting the filtered peak signal from the signal. A device for emitting a multichannel signal implementing the method for reducing the peak factor is also provided.
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公开(公告)号：US09660790B2
公开(公告)日：2017-05-23
申请号：US14339389
申请日：2014-07-23
Applicant: THALES
Inventor： Catherine Lamy-Bergot , Jean-Luc Rogier
CPC classification number: H04L5/0064 , H04L5/0037 , H04L5/0066 , H04L27/0006 , H04W16/14
Abstract: A method for managing the HF frequencies in a broadband communication network, comprises the following steps: determining the range of passing frequencies for a user for a given link and SLA service; establishing the set of authorized frequencies S″ in the transmission range of the user with the different power and modulation configurations for each frequency; analyzing the received spectrum in order to determine the frequency or frequencies already used and deciding, on the basis of their associated usage type, whether they must be excluded; for each possible frequency fl of the set S′″, determining the necessary power , i=1 . . . N, j=1 . . . m for each of the m possible rate/waveform configurations, taking into account the power limit on each frequency fl; allocating the frequencies fl of the set S′″ to the different users, their modulation and their power, by taking account of multi-carrier constraints.
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