NASA NTRS · 20000074744
The S2 VLBI Systems: DAS, RT/PT and Correlator
Abstract
The S2 VLBI system synthesizes wide IF bandwidths by rapidly switching the local oscillator (LO) frequency in a small (1-4) number of baseband converters (BBC's). Data are recorded on video cassettes using an array of 8 VHS transports. Characteristics of the S2 Data Acquisition System (DAS), the S2 Record and Playback Terminals (RT and PT) and the S2 Correlator are summarized. The bandwidth synthesis (BWS) frequency switching sequence used in a series of system validation experiments is presented.
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Petrachenko, William T., Bujold, Marc, Cannon, Wayne H., Carlson, Brent R., Dewdney, Peter E., Feil, Georg H., Newby, Paul, Novikov, Alexander, Popelar, Josef, Wietfeldt, Richard D.. 2000-05-01. The S2 VLBI Systems: DAS, RT/PT and Correlator. https://ntrs.nasa.gov/citations/20000074744
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