The goal of SETI@home is to detect intelligent life outside Earth. SETI@home searches for possible evidence of radio transmissions from extraterrestrial intelligence using data from the Arecibo radio telescope. The software searches for four signals:[citation needed]
* Spikes in power spectra
* Gaussian rises and falls in transmission power, possibly representing the telescope beam's main lobe passing over a radio source
* Triplets — three power spikes in a row
* Pulsing signals that possibly represent a narrowband digital-style transmission
The process is somewhat like tuning a radio to various channels, and looking at the signal strength meter. If the strength of the signal goes up, that gets attention. More technically, it involves a lot of digital signal processing, mostly discrete Fourier transforms at various chirp rates and durations.
SETI @ HOME
From Wikipedia : SETI@Home
Posted by rajesh | 
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