Method for measuring a direction of incidence of an incident wave for an instantaneous wideband receiver and associated receiver

A method for measuring a direction of incidence of a wave for an instantaneous wideband receiver, said instantaneous wideband receiver including an array of at least two antennas which point in different directions and respective radiation patterns of which overlap one another, wherein, each antenna including at least two radiating elements so as to be able to work in a first operating mode associated with a first radiation pattern, where the two radiating elements being in phase, and according to a second operating mode associated with a second radiation pattern, different from the first radiation pattern, where the two radiating elements being in phase opposition, the method consists of:

• acquiring, for each antenna, a first signal corresponding to the first operating mode of the antenna considered and a second signal corresponding to the second operating mode of the antenna considered;
• determining, for each antenna, an opening half-angle of a cone of possible directions of incidence from the amplitude of the first signal and the amplitude of the second signal;
• calculating a bearing angle and/or an elevation angle of the direction of incidence by intersecting the cones of possible directions of incidence determined for each antenna.