Method for estimating angle of arrival of multi-target moving at high speed

A method for estimating an angle of arrival of multiple targets moving at a high speed, the method comprising:

• defining, by an angle of arrival and angular velocity defining unit, a resolving power and a range of an angle of arrival and an angular velocity of a plurality of direction finding targets (S1100);
• setting, by an angle of arrival and angular velocity setting unit, minimum values of the angle of arrival and the angular velocity within the defined range of the angle of arrival and the angular velocity to be a set angle of arrival and a set angular velocity (S1200);
• and
• adding, by an angle of arrival and angular velocity estimating unit, a value of angle of arrival resolution and a value of angular velocity resolution to the set angle of arrival and the set angular velocity, respectively, deriving a two-dimensional spectrum of a transformed incident signal using a pre-steered vector until the angle of arrival and the angular velocity become a maximum value, and estimating a peak value of the two-dimensional spectrum as a measured angle of arrival and a measured angular velocity of the target (S1300),
• wherein in the estimating (S1300), the pre-steered vector is calculated using the set angle of arrival and the set angular velocity, and
• wherein the angle of arrival and angular velocity defining unit, the angle of arrival and angular velocity setting unit, and the angle of arrival and angular velocity estimating unit comprise executable code configured and executed by a processor using algorithm associated with a non-transitory storage device.