DocumentCode
986795
Title
A new correlation radiometer
Author
Aitken, George J.M.
Author_Institution
Queen´´s University, Kingston, Ontario, Canada
Volume
16
Issue
2
fYear
1968
fDate
3/1/1968 12:00:00 AM
Firstpage
224
Lastpage
228
Abstract
A correlation radiometer is described in which the input signal is divided among 
amplifiers. The outputs of the amplifiers are cross-correlated in all possible combinations and the cross-products added to give the system output. It is shown that as goes to infinity the sensitivity of the radiometer approaches that of an ideal total-power system. A practical system of six amplifiers offers an improvement of 2.2 dB over a conventional two-amplifier correlation radiometer, or an improvement of 5.2 dB over a Dicke system.
amplifiers. The outputs of the amplifiers are cross-correlated in all possible combinations and the cross-products added to give the system output. It is shown that as goes to infinity the sensitivity of the radiometer approaches that of an ideal total-power system. A practical system of six amplifiers offers an improvement of 2.2 dB over a conventional two-amplifier correlation radiometer, or an improvement of 5.2 dB over a Dicke system.Keywords
Radiometry; Application specific processors; Circuit noise; Circuit stability; Costs; Detectors; Helium; Microwave radiometry; Noise level; Power measurement; Voltage fluctuations;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1968.1139144
Filename
1139144
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