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Development of 400MHz Wide-Band Correlation Board for Radio Astronomy Spectrometer  

Lee, Chang-hoon (Korea Astronomy Observatory/Taeduk Radio Astronomy Observatory)
Park, Han-Kyu (CubeX Co. Ltd)
Kim, Kwang-Dong (Korea Astronomy Observatory/Taeduk Radio Astronomy Observator)
Koo, Bon-Chul (Dept. of Astronomy, Seoul National University)
Byun, Do-Young (Dept. of Astronomy, Seoul National University)
Han, Seog-Tae (Korea Astronomy Observatory/Taeduk Radio Astronomy Observator)
Kim, Tae-Sung (Korea Astronomy Observatory/Taeduk Radio Astronomy Observatory)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.41, no.2, 2004 , pp. 37-44 More about this Journal
Abstract
In this paper, we performed the design and the development of the wide-band correlation board to be an important role in the autocorrelation spectrometer's building for the observation study of an extra-galaxy's spectral lines and the survey research of the special radio sources in field of the radio astronomy. In this research, the developed correlation board by using QUAINT correlator chip(made by NRAO) has maximum 100 MHz clock speed and operate at a intermediate frequency with 400 MHz bandwidth. For the Performance test we supply the 0.5 and 1.67 MHz rectangular wave, then we obtain the autocorrelation coefficients. The final results, which process by using FFT, get the almost same results compare with the theoretical correlation.
Keywords
Autocorrelation; Spectrometer; Radio Astronomy; QUAINT Correlator chip; Autocorrelation coefficients; FFT; Wide-bandwidth;
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