Computer Science – Sound
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997abos.conf..711d&link_type=abstract
Conference Paper, Astronomical and Biochemical Origins and the Search for Life in the Universe, IAU Colloquium 161, Publisher: B
Computer Science
Sound
Project Seti, Figure Of Merit, Sky Surveys (Astronomy), Signal Detection, Transmitters, Stellar Spectra, Microwave Sounding
Scientific paper
We develop a figure of merit for SETI observations which is an explicit function of the EIRP of the transmitters, which allows us to treat sky surveys and targeted searches on the same footing. For each EIRP, we calculate the product of terms measuring the number of stars within detection range, the range of frequencies searched, and the number of independent observations for each star. For a given set of SETI observations, the result is a graph of merit vs transmitter EIRP. We apply this technique to several completed and ongoing SETI programs. The results provide a quantitative confirmation of the expected qualitative difference between sky surveys and targeted searches: the Project Phoenix targeted search is good for finding transmitters in the 10 exp 9 to 10 exp 14 W range, while the sky surveys do their best at higher powers. Current generation optical SETI is not yet competitive with microwave SETI.
Cullers D. K.
Dreher John W.
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