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Signal processing in SETIIt is believed that the Galaxy might contain ten billion potential life sites. In view of the physical inaccessibility of extraterrestrial life on account of the vast distances involved, a logical first step in a search for extraterrestrial intelligence (SETI) appears to be an attempt to detect signals already being radiated. The characteristics of the signals to be expected are discussed together with the search strategy of a NASA program. It is pointed out that all presently planned searches will use existing radio-astronomy antennas. If no extraterrestrial intelligence signals are discovered, society will have to decide whether SETI justifies a dedicated facility of much greater collecting area. Attention is given to a multichannel spectrum analyzer, CW signal detection, pulse detection, the pattern detector, and details of SETI system operation.
Document ID
19860033802
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cullers, D. K.
(NASA Ames Research Center Moffett Field, CA, United States)
Linscott, I. R.
(NASA Ames Research Center Moffett Field, CA, United States)
Oliver, B. M.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: Computer
Volume: 18
ISSN: 0018-9162
Subject Category
Communications And Radar
Accession Number
86A18540
Distribution Limits
Public
Copyright
Other

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