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dc.contributor.authorUdaya Shankar, N.-
dc.contributor.authorRavi Shankar, T.S.-
dc.identifier.citationJournal of Astrophysics and Astronomy, 1990, Vol. 11, p297-310.en
dc.description.abstractA 128-channel digital correlation receiver, built for the GEETEE, a low-frequency radio telescope situated in South India and used for continuum, spectral line, and pulsar observations, is presented. The receiver uses a modified double-sideband technique and measures the spectral-line temperatures without switching. Quadrature samples of signals can be obtained by sampling the digitized intermediate frequency (IF) signals of two clocks, separated in time by one quarter of the period of the IF. Visibilities are measured using one-bit correlators. A proposed scheme for measuring the amplitude information of a signal, using a threshold detector, a one-bit correlator, and including the zero spacing in the synthesis, can enable measurements of the total sky brightness.en
dc.format.extent1396828 bytes-
dc.publisherIndian Academy of Sciences, Bangalore, India.en
dc.rightsIndian Academy of Sciences, Bangalore, India.en
dc.subjectDSB Systemen
dc.subjectOne-bit correlatoren
dc.titleA digital correlation receiver for the GEETEE radio telescope.en
Appears in Collections:Research Papers (A&A)

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