Target characterisation method for a detection device of multi-panel radar or sonar type with electronic scanning

Target characterisation method for a detection device of multi-panel radar or sonar type with electronic scanning, comprising the steps of:

• generating a plurality of pulses on a plurality of antenna panels of the detection device according to a temporal and angular interleaving pattern, so as to perform a scan over all of the relative bearing domain of the detection device;
• generating a plurality of detection maps, by acquisition of a plurality of observations combined with one another by coherent or non-coherent integration of echoes corresponding to the plurality of pulses, each detection map being obtained in a given direction corresponding to the width of the main lobe of the antenna panel;
• combining the detection maps so as to detect the presence of a target in the relative bearing domain of the detection device;
• wherein the interleaving pattern comprises a sequential transmission of pulses having different transmission frequencies in a same direction, the plurality of pulses being spaced apart by a predefined repetition period, an ambiguous period between two transmissions of the same frequency in a same direction, at the end of each scan over the relative bearing domain, being greater than the repetition period.