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Commission 5. Radio and radar astronomy
Author(s) -
Cohen M. H.
Publication year - 1973
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs008i006p00593
Subject(s) - radar , radio astronomy , physics , telecommunications , astronomy , session (web analytics) , noise (video) , remote sensing , meteorology , computer science , geology , artificial intelligence , world wide web , image (mathematics)
This session was limited to observations at wave‐lengths above 1 cm. The review by B. M. Zuckerman (USA) began with spectral‐line equipment developments. Front ends can now be built anywhere in the range 1 to 30 GHz with system temperatures around 20 to 60 K, but these low‐noise receivers are all rather inflexible in frequency. There is now widespread use of correlators as back ends, and further improvements in performance can be expected.