Patent ID: 9523769
Filing Date: 2016-12-20
CPC Classification: G01S

Claim Text:
1. A vertical alignment method for a radar of a vehicle, comprising the steps of: radiating a first radio wave to a forward ground by a radar which is installed on the vehicle, the first radio wave subsequently being reflected by the forward ground; receiving the reflected wave of the first radio wave; and determining whether a vertical misalignment of the radar occurs, based on the reflected wave; wherein the step of determining whether a vertical misalignment of the radar occurs comprises determining a distance between the radar and the forward ground by determining a degree to which a measured frequency range is shifted relative to a predetermined frequency range measured at a time prior to measurement of the measured frequency range on a frequency spectrum of the reflected wave and wherein the predetermined frequency range is determined by radiating a second radio wave at a predetermined angle and the predetermined frequency range is determined at this point in time.