A real-time FFT-KLT implementation for SETI research at the Sardinia Radio Telescope
Date Issued
2016
Author(s)
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LUNESU, Maria Ilaria
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Abstract
The Search for ExtraTerrestrial Intelligence (SETI) is a project whose goal is to find possible life signatures emitted (intentionally or unintentionally) by possible civilizations from other habitable planets. Historically, the narrow-band FFT approach has been used, since a quasi-monochromatic signal is the most probable signal one would use to send a message to another world, that is in the case of intentionally- transmitted signals. Nevertheless, we could receive an unintentionally-transmitted signal as well. In that case, it would most certainly not be a quasi-monochromatic signal, but would probably be similar (with
a wider bandwidth, of the order of MHz) to the signals that we use for conventional communications
on Earth. The Kahrunen-Loève Transform (KLT) is a powerful algorithm for such a kind of research. However, a real-time implementation of the KLT has thus far not worked due to a lack of technological resources. We describe a hardware-software infrastructure at the Sardinia Radio Telescope (SRT) that, in real-time, makes it possible to perform the KLT in parallel to the FFT.
Coverage
Making Space Accessible and Affordable to All Countries
Start page
1309
Conferenece
67th International Astronautical Congress (IAC 2016)
Conferenece place
Guadalajara, Mexico
Conferenece date
September 26-30, 2016
Rights
open.access
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