Low frequency radio astronomy through an artificially created ionospheric window

Details Low frequency radio astronomy through an artificially created ionospheric window Low frequency radio astronomy through an artificially created ionospheric window

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975natur.255...42p&link_type=abstract

Nature, vol. 255, May 1, 1975, p. 42-44.

Astronomy and Astrophysics

Astronomy

1

Artificial Clouds, Atmospheric Windows, Ionospheric Propagation, Radio Astronomy, Antenna Arrays, Calibrating, Cut-Off, Hydrogen, Night Sky, Plasma Density, Transmission Efficiency

Scientific paper

It is suggested that injection of H2 into the ionosphere by rockets or space shuttles in order to create a window for ground-based decameter-band radioastronomical observations is now a realistic possibility. The advantages of ground-based over satellite-borne measurement are the absence of plasma interference problems and the improved directivity attainable with simple interferometric techniques or with some of the already existing antenna arrays.

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