목표 검출 장치는 분석 부, 방향 추정 섹션, 수신 된 파형 형성 섹션 및 거리 계산 섹션을 포함한다.
A target detection device includes an analysis section, a direction estimating section, a received waveform forming section, and a distance calculating section. The received waveform forming section forms a received waveform for each of the frequencies of the continuous waves by weighting beat signals corresponding to received waves received by each of receiving antennas, so as to have directivity in one of arrival directions estimated by the direction estimating section.