Patent ID: 8232912

Claim:
An object detecting apparatus, comprising: a transceiver that transmits FM/CW waves toward a plurality of detection areas and receives a reflected wave of the transmitted FM/CW wave from an object; a frequency analyzer that generates a beat signal from the transmitted wave and the received wave of the transceiver and subjects the beat signal to frequency analysis; a peak signal detector that determines peak signals on the rising side and the falling side based on the results of the frequency analysis by the frequency analyzer; and an object candidate information storage device that stores as object candidate information a distance or a relative speed for an object determined based on a combination of peak signals on the rising side and the falling side of each detection area, wherein, when the difference in frequency between peak signal 1 determined in any detection area and peak signal 2 determined in another detection area is no greater than a predetermined value, and object candidate information relating to peak signal 1 and object candidate information relating to peak signal 2 stored in the object candidate information storage device are substantially equal to each other, the object detecting apparatus is configured to: group the two peak signals, and calculate the distance or relative speed of the object based on a combination of peak signals on the rising side and the falling side after the grouping processing.