00660nam a2200217 c 4500001001300000005001500013007000300028008004100031020002500072049003200097052001500129056001100144074002500155082001500180245008700195260004300282300003700325650004700362700001900409950001400428KMO20216164220211125132429ta210610s2020    jnkad         000   korNH  a9791158201692g935600 lEM7986827lEM7986828c2fGP01a568b21-13  a56826  k11-1721137-000084-1001a621.3822300a무인항공기 활용 등 전파이용기술 연구 /d연구책임자: 최광호  a나주 :b국립전파연구원,c2020  a69 p. :b삽화, 도표 ;c26 cm 8a전파 공학[電波工學]0KSH20020411571 a최광호4aut1 a비매품