Patent ID: 7928897

Claim:
A target detection method for use in a radar, the radar including a transmission antenna and a reception antenna, at least one of the transmission antenna and the reception antenna including a plurality of antenna elements arranged in a straight line, the target detection method comprising: switching, in a first measurement phase, the plurality of antenna elements at first time intervals on the basis of a preset predetermined switching pattern; calculating a first azimuth of a target based on the first measurement phase; switching, in a second measurement phase, the plurality of antenna elements at second time intervals different from the first time intervals on the basis of the predetermined switching pattern; calculating a second azimuth of the target based on the second measurement phase; and calculating a velocity of the target relative to the radar on the basis of the first azimuth, the second azimuth, each of the first time intervals, each of the second time intervals, and a spacing between the plurality of antenna elements.