부산대학교 도서관

Millimeter-wave chirp sequence (CS) radar is a promising radar solution for automated driving system and ADAS (Advanced Driver Assistance System). Future dense deployment of automotive CS radars could result in significant inter-radar interference which causes miss-detection and/or false detection of the target. Narrowband interference resulting in false detection can be a serious problem when CS radar using the same design parameters are widely deployed. This paper proposes narrowband interference suppression using envelop detection-based interference replica regeneration to enhance spectrum sharing among automotive CS radars. The proposed scheme regenerates narrowband interference replica by periodical interference sensing and envelop detection, and it suppresses the interference by using it. Prototype 79GHz CS radar has been developed, and the experimental results confirm the feasibility of the proposed scheme.