Radar imaging method, and radar using such a method

An imaging method using a doppler radar using an active antenna comprising N transmission channels and M reception channels, said antenna covering an angular domain of given solid angle during a detection time interval of duration T, said time unit corresponding to a detection block wherein the N transmission channels are focused successively in pointing directions (dei) taken from a set of De pointing directions, wherein

• the pointing direction on transmission (dei) is modified from recurrence to recurrence;
• each detection block of duration T comprises a periodic repetition of a number C of pointing cycles on transmission, each of these cycles comprising a number P of recurrences, the set of these P recurrences covering the De pointing directions (dei) of said set;
• the order of the pointings is modified in a pseudo-random manner from pointing cycle to pointing cycle during a same detection block on transmission so as to create an irregular time interval between two pointings in a same direction;
• at least one beam is formed in reception on each recurrence in a direction included in said focused angular domain in transmission in the pointing direction corresponding to said recurrence.