Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
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SMALL-SCALE GIGABIT VLBI OBSERVATION SYSTEM USING PC

PC를 이용한 소규모 기가비트 VLBI 관측시스템

  • 오세진 (한국천문연구원 전파천문연구부) ;
  • 노덕규 (한국천문연구원 전파천문연구부) ;
  • 김광동 (한국천문연구원 전파천문연구부) ;
  • 정현수 (한국천문연구원 전파천문연구부) ;
  • 제도흥 (한국천문연구원 전파천문연구부) ;
  • 위석오 (한국천문연구원 전파천문연구부) ;
  • 한석태 (한국천문연구원 전파천문연구부) ;
  • 김현구 (한국천문연구원 전파천문연구부)
  • Published : 2005.12.31
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Abstract

In this paper, we propose a small-scale Gigabit VLBI observing system for the Korean VLBI Network (KVN) under construction. The system consists of high-speed sampler, IP-VLBI board, PC-VSI board, and software correlator. Radio signal received by receiver is sampled by high-speed sample. at 1 Gsps (Gigabit sample per second) rate with 2 bits quantization. The digitized signal is recorded in PC and the software correlator does the cross correlation. IP-VLBI board will be used for the geodesy VLBI observation, while PC-VSI board is for the astronomical VLBI observation. The PC-VSI board adopts the VSI-H (VLBI Standard Interface Hardware). The proposed system is based on commercial PCs and therefore can be built inexpensively.

Keywords

References

  1. 김현구 외, 2003, 한국우주전파관측망 건설사업 계획서
  2. 오세진 외, 2005, 'IP-VLBI 보드를 이용한 소규모 VLBI 관측시스템 구축,' 신호처리합동학술대회 논문집
  3. 오세진 외, 2005, 'Current status of KVN backend system,' 2005 Japan-Korea VLBI Meeting
  4. 이창훈 외, 2002, '400MHz autocorrelation spectrometer,' 한국우주과학회지, 19, 4, 327-340
  5. Kimura et. al., 2002, 'The implementation of the PC based Gigabit VLBI system,' IVS Technology Development Center News, 21, 31-33
  6. Kimura et. al., 2003, 'PCを用いた2ギガビットVLBIシステ ム,' Proc. of VLBI Symposium 2003 and Japan-Korea VLBI meeting, 16-19
  7. Kimura et. al., 2005, 'Development of the software correlator for the VERA system,' IVS Technology Development Center News, 26, 26-27
  8. Koyama et. al., 2003, 'K5システムによる測地VLBI実験,' Proc. of VLBI Symposium 2003 and Japan-Korea VLBI meeting, 1-4
  9. Kondo et. al., 2000, 'Development of the new real-time VLBI technique using the Internet Protocol,' IVS Technology Development Center News, 17, 22-24
  10. Kondo et. al., 2004, 'Current Status of the K5 Software Correlator,' IVS Technology Development Center News, 25, 23-27