Patent ID: 7158217

Claim:
A vehicle radar device comprising: radar means for radiating a plurality of transmission waves in at least a direction of width of a vehicle over a predetermined angular range and for producing received signals corresponding to intensities of reflected waves when reflected waves corresponding to the transmission waves are received; setting means for setting a range of the received signals to be integrated including a predetermined number of received signals output based on the predetermined number of transmission signals radiated from the radar means neighboring each other, and for setting a plurality of ranges of the received signals to be integrated while shifting the received signals belonging to the ranges of the received signals to be integrated by a number of the received signals smaller than the predetermined number, so that some of the received signals belong, in an overlapped manner, to the plurality of ranges of the received signals to be integrated; integrating means for integrating the predetermined number of the received signals belonging to the plurality of ranges of the received signals to be integrated set by the setting means, and for producing integrated signals; and detector means for comparing integrated signals output from the integrating means with a predetermined reference integrated value, and for detecting a reflecting object based on the integrated signals which are greater than the reference integrated value.