행렬의 거듭제곱기법을 이용한 도래방향각 추정방법, 상기 방법을 이용한 도래방향각 추정장치, 및 상기 방법을 이용한 도래방향각 추정시스템 (METHOD OF ESTIMATING DIRECTION OF ARRIVAL USING POWER TECHNIQUE FOR MATRIX, APPARATUS USING THE SAME, AND SYSTEM USING THE SAME)

판매 대리인 : 기율특허

전화번호 : 02-782-1004

메일주소 : kiyul@kiyul.co.kr

영문 원어  : The present invention discloses a method for estimating an arrival direction angle using an involution technique of a matrix capable of exhibiting the same or improved performance as a conventional technique and reducing required calculation complexity, a device for estimating an arrival direction angle using the same, and a system for estimating an arrival direction angle using the same. According to an embodiment of the present invention, the method comprises the following steps of: calculating a covariance matrix based on a signal, direction information and noise information input to array antennas; calculating an involution matrix by exponentiating any one of the covariance matrix or an inverse matrix of the covariance matrix by a preset number of times; and estimating an arrival direction angle of the input signal by using the involution matrix and the direction information.