Patent ID: 9709674
Date: 2017-07-18
CPC Classifications: G01S

Claim:
1. A radar device comprising: a peak extracting unit that extracts frequency peaks representing the difference frequencies between a transmission signal whose frequency varies in a predetermined cycle and reception signals obtained by receiving reflected waves of a transmission wave based on the transmission signal from targets, in each section of an up section in which the frequency of the transmission signal increases and a down section in which the frequency of the transmission signal decreases: an angle calculating unit that calculates angle peaks representing angles of the targets relative to the frequency peaks; a pairing unit that generates pair data items by associating the angle peaks of the up section and the angle peaks of the down sections; a first representative deriving unit that derives one representative pair data item on the basis of a plurality of a specific pair data items whose positions in an angle direction are close to each other and which are substantially the same in the position in a distance direction intersecting with the angle direction and are substantially the same in relative speed; and a continuity determining unit that determines whether one representative pair data item derived in a past process and one representative pair data item derived in a current process are data items belonging to the same target at different process timings, wherein the first representative deriving unit derives one representative pair data item before continuity determination of the continuity determining unit at the same process timing is performed.