Statistics – Computation
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1867..156c&link_type=abstract
Proc. SPIE Vol. 1867, p. 156-160, The Search for Extraterrestrial Intelligence (SETI) in the Optical Spectrum, Stuart A. Kingsle
Statistics
Computation
Scientific paper
Electromagnetic SETI searches since 1960 have used a variety of search strategies. They have sampled 22 octaves in frequency with widely different sensitivities and sky coverages. Searches used a variety of detection bandwidths and data processing techniques, and consequently, the signals to which they were best matched differed greatly. Since the methods of extraterrestrial signaling are unknown, one cannot be certain of the relative merit of SETI searches. However, under plausible assumptions about the distribution of signal parameters, it is possible to evaluate all prior and proposed searches. The approach presented here assesses search merit under assumptions of either uniform or logarithmic distribution of signaling parameters such as pulse length. Under both assumptions, NASA's radio search is the most powerful to date. This is due to its high sensitivity, obtained at the cost of large computational load, and extensive frequency and sky coverage for many signal types.
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