Direction of arrival estimation system and direction of arrival estimation method

摘要

Problem to be solved: to provide an arrival direction estimation system and a direction of arrival estimation method capable of accurately estimating the direction of arrival of electromagnetic waves using all polarized components received at the same position.In the direction of arrival estimation system 1, the rotary body 5 is provided with three antennas 6, which are capable of receiving different polarized waves in each of the three orthogonal waves, adjacent to the circumference of the same circle C1.In the external control device 40, the antenna movement control section 42a rotates the rotary member 5 to move the respective antennas 6 in the circumferential direction so as to be able to stop at an arbitrary position P1 on the circumference.The direction of arrival estimation processing section 42b performs a process of estimating the direction of arrival of signals arriving from the peripheral radio devices 60A and 60b based on the received signals of the respective polarization by the respective antennas 6 at the position P1.Diagram