DETECTION DEVICE, UNDERWATER DETECTION DEVICE, AND RADAR DEVICE

摘要

[Problem] To separate incoming waves from multiple directions from each other. [Solution] A detection device (1) is provided with a reception unit (10) that has at least two planar reception arrays comprising a plurality of reception elements (A_k) aligned along each of at least two planar surfaces having different normal directions and receives echo signals using each of the plurality of reception elements (A_k), an intensity spectrum calculation unit (27) for calculating an intensity spectrum for each of the at least two planar reception arrays on the basis of the echo signals received by each of the planar reception arrays, and an echo image generation unit (30) for combining the plurality of intensity spectrums calculated by the intensity spectrum calculation unit (27) and generating an echo image.