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1. (WO2018046856) ADAPTIVE FILTERING METHOD FOR AN AMPLITUDE-MODULATED RADIO SIGNAL

Pub. No.:    WO/2018/046856    International Application No.:    PCT/FR2017/052377
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Fri Sep 08 01:59:59 CEST 2017
IPC: H04L 27/06
H04B 1/10
Applicants: CONTINENTAL AUTOMOTIVE FRANCE
CONTINENTAL AUTOMOTIVE GMBH
Inventors: HIVERT, Grégoire
Title: ADAPTIVE FILTERING METHOD FOR AN AMPLITUDE-MODULATED RADIO SIGNAL
Abstract:
The present invention relates to an adaptive filtering method for an amplitude-modulated radio signal (AM), the radio signal having a bandwidth, the method comprising: · transforming the radio signal into baseband, · measuring the level of noise and/or detecting the presence of an adjacent radio signal (A), of a first side of the bandwidth, · selecting or not selecting a first filter (F) numbered X, from among N first filters capable of cutting the amplitude-modulated radio signal of the first side of the bandwidth, · if a first filter numbered X is selected and applied to the amplitude-modulated radio signal transformed into baseband, the automatic selection of a second filter (F') numbered Y, Y being greater than or equal to X, from among N second filters, capable of cutting the amplitude-modulated radio signal from the opposite side to the first side of the bandwidth.