전방감지용 밀리미터파 레이더는 밀리미터파를 이용하여 자동차 등에 부착하여 송신파와 수신파 사이의 도플러 주파수 편이를 이용하여 선행차량 또는 전방의 장애물과의 거리와 상대속도를 판별하는 장치로서 적응형 순항제어 시스템(adaptive cruise con-trol system) 등에 이용되는 핵심 기술이다. 적응형 순항제어 시스템이란 레이더 센서를 통하여 전방 선행 차량, 장애물의 속도 및 거리를 측정하여 차량의 충돌 경고, 주행상황에 따른 자동적인 감속 및 가속, 정속 등 안전주행을 가능하도록 하는 기술이다. 본 기술 동향 분석보고서는 전방감지용 레이더 센서에 관한 기술 동향을 살펴보기 위하여 미국, EU, 일본, 한국의 전방감지용 레이더 센서에 관한 특허를 1991년부터 2005년까지의 특허출원을 중심으로 연도별 추이와 국가별 특허출원 동향, 출원인별 특허출원 동향 등을 분석하여 전방감지용 레이더의 세계 기술 추이에 대하여 알아보았다.
KSP Keywords
Adaptive cruise
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