GUARDRAIL DETECTING APPARATUS AND GUARDRAIL DETECTING METHOD

A guardrail detecting apparatus including a radar sensor that radiates radar signals in different directions of a vehicle to detect a guardrail on a front side of the vehicle, and a controller that selects a guardrail detection satisfying a preset condition from detection information received from the radar sensor in a guardrail detection area set on the front side of the vehicle, and generates a guardrail pattern based on guardrail coordinate information calculated by using coordinate information of the guardrail detection.