Physics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986icar...67..525h&link_type=abstract
Icarus (ISSN 0019-1035), vol. 67, Sept. 1986, p. 525-539.
Physics
8
Extraterrestrial Intelligence, Hardware, Microwave Frequencies, Narrowband, Project Seti, Signal Processing, Block Diagrams, Real Time Operation, Ultrahigh Frequencies
Scientific paper
Multichannel spectroscopy with millihertz resolution constitutes an attractive strategy for a microwave search for extraterrestrial intelligence. The authors have constructed a frequency-agile swept receiver with an 8,388,608-channel spectrum analyzer, on-line signal recognition, and multithreshold archiving. A search of 250 Sun-like stars at 1.4 and 2.8 GHz has been carried out with the Arecibo 305-m antenna, and a meridian transit search of the northern sky is in progress at the Harvard-Smithsonian 26-m antenna. Successive spectra of 400 kHz at 0.05 Hz resolution are searched for features characteristic of an intentional narrowband beacon transmission.
Backus Peter
Chen Kaiyou
Forster James
Horowitz Paul
Linscott Ivan
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