Direction of arrival estimating device, direction of arrival estimating method, direction of arrival estimating program

摘要

PROBLEM TO BE SOLVED: To provide an arriving direction estimating device that can precisely estimate the arriving direction of signals.SOLUTION: An arriving direction estimating device is equipped with a first arithmetic unit that acquires signals from each of multiple antennas based on signals received by an array antenna comprising the multiple antennas, generates a correlation array based on signals received by each of the antennas, generates a Khatri-Rao product-derived extended correlation array by using the correlation array and generates a spatial average extended correlation array by subjecting the extended correlation array to spatial average processing, and a second arithmetic unit that calculates, on the basis of the spatial average extended correlation array generated by the first arithmetic unit, the arriving direction of signals from targets contained in the received signals.SELECTED DRAWING: Figure 1