Patent Document ID: 20150097713
Application ID: 14503855
Patent Status: 0

Claim One:
1. A radar apparatus which transmits a transmission wave toward an object and receives a reception wave which is the transmission wave reflected by the object, comprising: a first spectrum calculator for calculating, by using the reception wave, a first spectrum which is a function of a physical quantity used for distance measurement; a grouping section which groups a plurality of peaks of the first spectrum on an object-by-object basis; a change amount calculator for obtaining, for each of a plurality of peaks belonging to a group, a peak value at the present point in time, comparing the peak value with a peak value obtained before the present point in time, and calculating a change amount of each peak; a ratio calculator for comparing the change amount with a predetermined change amount threshold and calculating a ratio of the number of peaks whose change amounts are greater than the change amount threshold to the number of peaks belonging to the group; and a pedestrian determination section for determining that the object is a pedestrian when the ratio calculated by the ratio calculator is greater than a predetermined ratio threshold and at least one of peaks belonging to the group differs from the remaining peaks in terms of the sign of the difference between the peak value at the present point in time and the peak value before the present point in time.