Method for estimating angle of arrival of multi-target moving at high speed
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United States of America Patent
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Jan 16, 2018
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app pub date -
Nov 21, 2014
filing date -
Jun 11, 2014
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Abstract
A method for estimating an angle of arrival of multiple targets moving at a high speed includes defining a range and a resolving power of an angle of arrival and an angular velocity of a plurality of direction finding targets (S1100), setting minimum values of the angle of arrival and the angular velocity within the range to be a set angle of arrival and a set angular velocity (S1200), and adding angle of arrival resolution and angular velocity resolution to the set angle of arrival and the set angular velocity, respectively, deriving a two-dimensional spatial 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 spatial spectrum as a measured angle of arrival and a measured angular velocity of the target (S1300).
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