An in-vehicle radar system, which transmits an electric wave toward a target object and measures the distance between a subject vehicle and the target object, based on the electric wave that has been reflected by the target object and is received by the in-vehicle radar system, includes subject vehicle-speed...http://www.google.es/patents/US7804444?utm_source=gb-gplus-sharePatente US7804444 - In-vehicle radar system
