Patent ID: 9575168
Date: 2017-02-21
CPC Classifications: G01S

Claim:
1. A radar apparatus which includes a transmitting part configured to transmit a radio wave and receiving parts configured to receive a reflected wave of the radio wave transmitted from the transmitting part, and detects a target object based on the reflected wave received by the receiving parts, comprising: a distance detecting part configured to detect, among plural bins from which relative distances to the target object can be calculated, an existence distance bin in which the target object exists, the plural bins corresponding to respective frequencies of a beat signal of the reflected wave; an angle detecting part configured to detect a direction in which the target object exists, with respect to the existence distance bin detected by the distance detecting part; a direction detecting process executing part configured to execute the process of detecting the direction in which the target object exists, with respect to only an adjacent distance bin located near the existence distance bin, among the bins, if it is determined by the distance detecting part that there is the existence distance bin; and an existence area detecting part configured to detect an area in which the target object exists based on positions, one of the positions being based on the existence distance bin detected by the distance detecting part and the direction in which the target object exists detected by the angle detecting part, and another position being based on the adjacent distance bin and the direction in which the target object exists, the direction being detected by an execution of the process by the direction detecting process executing part, wherein the distance detecting part determines the existence distance bin when there is a peak of a signal strength of the beat signal of the reflected wave received by the receiving parts that is greater than or equal to a predetermined value, the signal strength being obtained on a per distance bin basis of the plural distance bins.