In this paper, we describe the radio astronomical data processing system implementation using Mark5B and its development. KASI(Korea Astronomy and Space Science Institute) is constructing the KVN (Korean VLBI Network) until the end of 2007, which is the first VLBI(Very Long Baseline Interferometery) facility in Korea and dedicated for the mm-wave VLBI observation. KVN will adopt the DAS (Data Acquisition System) consisting of digital filter with various function and 1Gsps high-speed sampler to digitize the radio astronomical data for analyzing on the digital filter system. And the analyzed data will be recorded to recorder up to 1Gbps data rates. To test this, we have implemented the system which is able to process 1Gbps data rates and carried out the data recording experiment.

• 오세진(한국천문연구원) | SE-JIN OH (Korea Astronomy and Space Science Institute)
• 염재환(한국천문연구원) | JAE-HWAN YEOM (Korea Astronomy and Space Science Institute)
• 노덕규(한국천문연구원) | DUK-GYOO ROH (Korea Astronomy and Space Science Institute)
• 정현수(한국천문연구원) | HYUN-SOO CHUNG (Korea Astronomy and Space Science Institute)
• 제도흥(한국천문연구원) | DO-HEUNG JE (Korea Astronomy and Space Science Institute)
• 김광동(한국천문연구원) | KWANG-DONG KIM (Korea Astronomy and Space Science Institute)
• 김범국(대구과학대학) | BUM-KOOG KIM (Taegu Science College)
• 황철준(대구과학대학) | CHEOL-JUN HWANG (Taegu Science College)
• 정구영(한국천문연구원) | GU-YOUNG JUNG (Korea Astronomy and Space Science Institute)