Suyoung Shin Choi, Jong-Suk Mignong Park 2024-01-13T10:01:33Z 2024-01-13T10:01:33Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/105455 English active beacon mobile agent indoor localization time of flight ultrasonic pan-tilt Efficient Localization System for Mobile Agents Using Active Beacons Conference 1 ISARC2004 ISARC2004 KO