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Nebula :
Drifting RFI vanquished!
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David Anderson Send message Joined: 13 Feb 99 Posts: 173 Credit: 502,653 RAC: 0 |
I did another run of RFI removal (with new drifting RFI parameters), and scored 100K pixels. The results are in the usual place. A quick scan of the top-scoring multiplets (bary and non-bary) suggests that the drifting RFI algorithm is working very well. Check out the examples I bookmarked. If you can find any places where it's working, please bookmark them and reply to this thread. There's still something amiss with the scoring algorithm. Non-bary multiplets should not have scores of -100,000 (remember, score is the log of probability, and nothing is THAT improbable). I've added a new "Scoring Details" button for pixels that shows the verbose output of the scoring algorithm. This is for Eric, and probably won't make sense to anyone else. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
https://setiathome.berkeley.edu/nebula/waterfall.php?t=2455525.319763&dt=0.004&f=1418998711.1092&df=2000&spike=on&gaussian=on&pulse=on&triplet=on&autocorr=on&action=fout2 I suppose red vertical line of spikes is RFI and it gets removed by RFI removal algorithm indeed. But what about 6 horizontal blue lines of pulses? Hitting RFI removal button doesn't remove them. But those lines show some regularity. Especially 4 in center - equidistant ones. Actually, ones on top and bottom fit in same equidistant pattern too with one line missing . Is it RFI? Or pulses out of consideration currently? EDIT: it looks like periodic sequence of very short pulses (that give flat spectrum ). Something for AstroPulse to deal with, no? SETI apps news We're not gonna fight them. We're gonna transcend them. |
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