A microprocessor-controlled steerable array for metre-wave radio astronomy

Details A microprocessor-controlled steerable array for metre-wave radio astronomy A microprocessor-controlled steerable array for metre-wave radio astronomy

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205..759r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Nov. 1983, p. 759-764.

Astronomy and Astrophysics

Astronomy

2

Antenna Arrays, Electronic Control, Microprocessors, Radio Astronomy, Steerable Antennas, Very High Frequencies, Antenna Design, Computer Techniques, Numerical Control, Parabolic Antennas, Phase Control, Radio Telescopes, Very Long Base Interferometry

Scientific paper

The authors describe a parabolic-trough antenna which can track sources north of declination -5° for at least 6 hr at 81.5 MHz. Electrical steering is accomplished by using a microprocessor to control the phase of each dipole in the array. Jumps in the output signal are minimized by updating the phases one-by-one in a pseudo-random sequence, making the antenna suitable for interplanetary scintillation studies and long-baseline interferometry.

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