Work units - time domain or frequency domain?

Message boards : SETI@home Science : Work units - time domain or frequency domain?
Message board moderation

To post messages, you must log in.

AuthorMessage
Ben

Send message
Joined: 15 Jun 99
Posts: 54
Credit: 60,003,756
RAC: 150
United States
Message 1976318 - Posted: 21 Jan 2019, 20:21:19 UTC

My question is: are work units raw digital signals or are they sent as a series of frequency spectra. Thank you.
ID: 1976318 · Report as offensive
rob smith Crowdfunding Project Donor*Special Project $75 donorSpecial Project $250 donor
Volunteer moderator
Volunteer tester

Send message
Joined: 7 Mar 03
Posts: 22190
Credit: 416,307,556
RAC: 380
United Kingdom
Message 1976396 - Posted: 22 Jan 2019, 5:59:16 UTC

They are a 2-second sample of "raw" data passed through a narrow-pass-band filter.
Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?
ID: 1976396 · Report as offensive
Ben

Send message
Joined: 15 Jun 99
Posts: 54
Credit: 60,003,756
RAC: 150
United States
Message 1976498 - Posted: 22 Jan 2019, 23:01:34 UTC - in response to Message 1976396.  

They are a 2-second sample of "raw" data passed through a narrow-pass-band filter.


Just two seconds? I thought they were one hundred and seven seconds. Is there any documentation newer than the seti classic about page? Thank you.
ID: 1976498 · Report as offensive
Profile ML1
Volunteer moderator
Volunteer tester

Send message
Joined: 25 Nov 01
Posts: 20267
Credit: 7,508,002
RAC: 20
United Kingdom
Message 1981357 - Posted: 20 Feb 2019, 20:58:18 UTC

The WUs are nicely explained somewhere...

IIRC: We have 107 seconds of time domain imaginary numbers (2-bits per data sample)...

I'm very happy to be corrected!


Keep searchin',
Martin
See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)
ID: 1981357 · Report as offensive

Message boards : SETI@home Science : Work units - time domain or frequency domain?


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.