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1. (WO2018220323) METHOD FOR SUPPRESSING ELECTROMAGNETIC INTERFERENCE IN AN AMPLITUDE MODULATED RADIO SIGNAL, IN PARTICULAR RECEIVED IN AN ELECTRIC OR HYBRID VEHICLE

Pub. No.:    WO/2018/220323    International Application No.:    PCT/FR2018/051240
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: H04B 1/10
Applicants: CONTINENTAL AUTOMOTIVE FRANCE
CONTINENTAL AUTOMOTIVE GMBH
Inventors: HIVERT, Grégoire
Title: METHOD FOR SUPPRESSING ELECTROMAGNETIC INTERFERENCE IN AN AMPLITUDE MODULATED RADIO SIGNAL, IN PARTICULAR RECEIVED IN AN ELECTRIC OR HYBRID VEHICLE
Abstract:
The invention relates to a method for attenuating electromagnetic interference in an AM radio signal received by a radio receiver, so as to produce a filtered radio signal Zn defined by Zn = WnTYn at the time n, wherein Yn is a vector of which the components correspond to the radio signal received by a first antenna and to a second signal received by a second antenna connected to the interference source, respectively, and Wn is a vector of which the components correspond to complex coefficients of an impulse-response filter, wherein: (I), by the introduction of a correlation between the real and imaginary portions of said complex coefficients, said complex coefficients being expressed in polar coordinates, so that w1,n = g1,nej2πθ1,n and w2,n = g2,nej2πθ2,n, and the implementation of a predetermined iterative algorithm configured to determine g1,n,g2,n, θ1,n and θ2,n capable of minimising the following cost function: (II).