A method for determining the direction of arrival of radio signals in the presence of aliasing, the method using an interferometric array with four antennas with identical diagrams, and sampling by two distinct sampling frequencies per antenna, the aliasing being such that in the time/frequency representation of a signal, the signal being called wanted signal, a maximum of one antenna is affected by an interference phenomenon on its two sampling frequencies, the phenomenon being due to a first external interference, and a second interference being either a second external interference, or an internal interference, the method comprising: - the reception of a signal by each antenna, - the sampling of the signals received on each of the four antennas according to two sub-Nyquist frequencies forming the set { f 1, perm ( f 1); f 2, perm ( f 2); f 3, perm ( f 3); f 4, perm ( f 4)}, where f 1, f 2, f 3 and f 4 are four distinct sub-Nyquist frequencies and perm is a permutation of the set { f 1, f 2, f 3, f 4}, such that the signals received on two distinct antennas are sampled by two distinct pairs of sub-Nyquist sampling frequencies. - the spectral analysis by application, during a synchronous acquisition period over all of the samplings, of a discrete Fourier transform to obtain 2P time-frequency grids, each element of a grid containing a complex vector called measurement, - the detection of the presence or absence of wanted signal at a plurality of frequencies, the method also comprising, for all of the detected wanted signals: - the determination of the interference situation for each antenna, - for the antennas other than the antenna affected by the double interference, the phase of the wanted signal, and - for any antenna affected by the double interference, the estimate of the phase of the wanted signal, comprising: - the first estimate of the first pair of candidate phases ξ 1 1 and ξ 1 2 is estimated from the measurement z resulting from the mixture of the wanted signal, the first interference signal and noise, - the second estimate of the second pair of candidate phases ξ 2 1 and ξ 2 2 is estimated from the measurement ζ resulting from the mixture of the wanted signal, the second interference signal and noise, and - selection of phase values from among the candidate phases to obtain an estimate of the phase of the wanted signal on the antenna affected by the double interference. - the reception of a signal by each antenna, - the sampling of the signals received on each of the four antennas according to two sub-Nyquist frequencies forming the set { f 1, perm ( f 1); f 2, perm ( f 2); f 3, perm ( f 3); f 4, perm ( f 4)}, where f 1, f 2, f 3 and f 4 are four distinct sub-Nyquist frequencies and perm is a permutation of the set { f 1, f 2, f 3, f 4}, such that the signals received on two distinct antennas are sampled by two distinct pairs of sub-Nyquist sampling frequencies. - the spectral analysis by application, during a synchronous acquisition period over all of the samplings, of a discrete Fourier transform to obtain 2P time-frequency grids, each element of a grid containing a complex vector called measurement, - the detection of the presence or absence of wanted signal at a plurality of frequencies, - the determination of the interference situation for each antenna, - for the antennas other than the antenna affected by the double interference, the phase of the wanted signal, and - for any antenna affected by the double interference, the estimate of the phase of the wanted signal, comprising: - the first estimate of the first pair of candidate phases ξ 1 1 and ξ 1 2 is estimated from the measurement z resulting from the mixture of the wanted signal, the first interference signal and noise, - the second estimate of the second pair of candidate phases ξ 2 1 and ξ 2 2 is estimated from the measurement ζ resulting from the mixture of the wanted signal, the second interference signal and noise, and - selection of phase values from among the candidate phases to obtain an estimate of the phase of the wanted signal on the antenna affected by the double interference. - the first estimate of the first pair of candidate phases ξ 1 1 and ξ 1 2 is estimated from the measurement z resulting from the mixture of the wanted signal, the first interference signal and noise, - the second estimate of the second pair of candidate phases ξ 2 1 and ξ 2 2 is estimated from the measurement ζ resulting from the mixture of the wanted signal, the second interference signal and noise, and - selection of phase values from among the candidate phases to obtain an estimate of the phase of the wanted signal on the antenna affected by the double interference.