Precision measurement of antenna system noise using radio stars

Details Precision measurement of antenna system noise using radio stars Precision measurement of antenna system noise using radio stars

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983itim...32..110w&link_type=abstract

(Institute of Electrical and Electronics Engineers, National Bureau of Standards, and International Union of Radio Science, Conf

Physics

Antenna Radiation Patterns, Electromagnetic Noise Measurement, Microwave Antennas, Radio Stars, Atmospheric Effects, Automatic Test Equipment, Bandwidth, Earth Terminals, Figure Of Merit, Flux Density, Moon, Noise Temperature, Power Gain

Scientific paper

This paper reviews the National Bureau of Standards (NBS) precision noise measurements program for antenna systems which have been made using Cassiopeia A and the moon. The Earth Terminal Measurement System (ETMS) was developed by NBS to make measurements of figure of merit (G/T), and the noise equivalent flux (NEF). The accuracy of the noise measurements are, typically, between 5 and 15 percent for systems with antenna gains between 51 and 65 dB and frequencies between 1 and 10 GHz.

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