Patent ID: 9157995
Filing Date: 2015-10-13
Classification: G01S

Abstract:
1. A radar apparatus that: i) transmits a transmission signal having a frequency that changes in a predetermined cycle; ii) receives a reception signal obtained from reflected wave of a transmission wave based on the transmission signal reflected by an object; iii) derives a peak signal from a frequency difference between the transmission signal and the reception signal, in each of a first period in which the frequency of the transmission signal increases and a second period in which the frequency of the transmission signal decreases, in one object detection process; iv) pairs the peak signal in the first period with the peak signal in the second period to make a paired peak signal; and v) derives an object data set corresponding to the object based on a pair data set of the paired peak signal, the radar apparatus comprising a signal processor configured to: derive, using a first process, at least one of a distance and a relative speed included in the object data set, and derive, using a second process different from the first process, at least one of the distance and the relative speed included in the object data set when the distance included in the object data set is below a predetermined distance.