Patent ID: 7893864

Claim:
A radar apparatus comprising: an antenna that is configured to transmit a frequency-modulated transmission wave toward an object and receive a reception wave from the object; a mixer that is configured to mix the transmission wave with the reception wave to generate a beat signal having a first beat interval and a second beat interval; a detecting section that is configured to detect a plurality of first peak signals contained in the first beat interval of the beat signal and a plurality of second peak signals contained in the second beat interval of the beat signal; a grouping section that is configured to group the plurality of second peak signals; a searching section that is configured to search a part of the plurality of first peak signals corresponding to the grouped second peak signals; and a separating section that is configured to separate the part of the first peak signals corresponding to the grouped second peak signals from a remaining part of the first peak signals, wherein the separating section separates the part of the first peak signals from the remaining part of the first peak signals based on a difference between the number of peak signals searched by the searching section and disposed at a right side with respect to one of the first peak signals corresponding to a top peak of the grouped second peak signals and the number of peak signals searched by the searching section and disposed at a left side with respect to the one of the first peak signals.