Patent ID: 9689983
Date: 2017-06-27
CPC Classifications: G01S

Claim:
1. A radar apparatus comprising: a Doppler frequency acquirer which, in operation, acquires a Doppler frequency for each of plural range bins from an echo signal, received via at least one antenna, which is a radar signal reflected by an object, each of the plural range bins being a unit of processing for a search target distance; a direction correlation power value calculator which, in operation, calculates, for each of plural combinations of the plural range bins and the Doppler frequencies, a direction correlation power value indicating strength of the echo signal for each of plural directions of arrival of the echo signal; a normalized direction correlation value calculator which, in operation, calculates, for each of the plural combinations of the plural range bins and the Doppler frequencies, a normalized direction correlation value indicating likelihood of a direction of arrival of the echo signal for each of the plural directions; and a running vehicle detector which, in operation, determines, on a basis of the direction correlation power value and the normalized direction correlation value, whether the object is a running vehicle.