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 impulseresponse 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).
