Mathematics – Logic
Scientific paper
Jun 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975sci...188.1263s&link_type=abstract
Science, vol. 188, June 27, 1975, p. 1263-1268.
Mathematics
Logic
3
Angular Resolution, Antenna Arrays, Radio Telescopes, Technological Forecasting, Transoceanic Systems, Data Transmission, Hawaii, High Resolution, Magnetic Tapes, Radio Astronomy, Radio Interferometers, Recording Instruments, Spain, Synchronous Satellites, United States, Very Long Baseline Array (Vlba)
Scientific paper
A possible true image-forming system with submilliarcsecond resolution is discussed which could be constructed by using eight to ten radio telescopes as part of an intercontinental very long baseline array (VLBA). A brief review is presented of interferometry techniques, aperture synthesis, independent-oscillator tape-recording systems, and image forming. A possible VLBA is proposed which uses existing radio observatories and extends from Hawaii across the continental United States to Spain. Data transmission from a very long baseline interferometer is described, and the operation of an intercontinental VLBA is discussed. Some cost considerations are noted for the selection of a ground-based VLBA using existing observatories rather than a VLBA using a geostationary communications satellite.
Kellermann Kenneth I.
Swenson George W. Jr.
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