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        전파천문 및 위성통신업무간의 주파수 공유방안

        정현수,노덕규,제도흥,김효령,박종민,안도섭,오대섭,CHUNG HYUNSOO,ROH CUK-GYOO,JE DO-HEUNG,KIM HYO-RYOUNG,PARK JONG-MIN,AHN DO-SEOB,OH DAE-SUB 한국천문학회 2004 天文學論叢 Vol.19 No.1

        In the past, radio astronomers have sought isolation from man-made signals by placing their telescopes in remote locations. These measures may no longer safeguard scientific observations, since NGSO satellite systems, particularly low-Earth orbit (LEO) systems, are usually designed to provide global or wide regional coverage. Further, radio astronomers have historically made their observations in the frequency bands allocated for their use by the member countries of the International Telecommunication Union (ITU). The science of radio astronomy could be adversely impacted by the deployment of large constellations of new non-geostationary orbiting (NGSO) satellites for telecommunications, navigation and Earth observation, and the proliferation of new, high-power broadcasting and telecommunication satellites in geostationary (GSO) orbits. Radio telescopes are extremely sensitive, and, in certain situations, signals from satellites can overwhelm the signals from astronomical sources. This paper describes the problem in detail and identifies ways to mitigate it without adversely affecting the continued vigorous growth of commercial space-based telecommunications.

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