Patent ID: 9322905
Filing Date: 2016-04-26
CPC Classification: G01S,G08G

Claim Text:
1. A radar device configured to be installed at a position which is at a predetermined height from a road surface, comprising: a radar transmitting unit configured to transmit a radio-frequency radar transmission signal from the position which is at the predetermined height to the road surface from a transmission antenna which is inclined in a direction of a predetermined depression angle; and a radar receiving unit configured to estimate a position parameter and a speed of a vehicle which travels on the road surface, using a reflected wave signal which is the radar transmission signal reflected from the vehicle which travels on the road surface, wherein the radar receiving unit includes: a correlation calculation unit configured to calculate correlation on the basis of the reflected wave signal and a transmission code of the radar transmission signal; a template generating unit configured to generate a variation in a phase component of the reflected wave signal corresponding to N position parameters and speeds of the vehicle as N templates; N template correlation calculation units configured to calculate correlation on the basis of any one of the generated N templates and a correlation value between the reflected wave signal and the transmission code of the radar transmission signal; and an output selection unit configured to determine a type of the vehicle, using the position parameter and the speed of the vehicle corresponding to any one of the generated N templates, on the basis of outputs from the N template correlation calculation units.