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Report on new optimized Astropulse apps for Windows
Richard Haselgrove:
Upload complete - you can pull that trigger now.
Jason G:
Got it, and looking at the result file. All signals listed are same <time>, which doesn't make sense to me uury, so I'm looking for some periodic relationships between one repeating pulse and the next...
Richard Haselgrove:
Not quite all. The 'jewel' has seven pulses with different times, and the other one (not yet uploaded) has four - so I guess that the single pulses are accurately timed, and the repetitive pulses just have a dummy value inserted - which happens to match the <start> time in <data_desc>.
I'm slightly surprised by the blanking report at the start of the result file analysis: <percent_blanked> -18.750000 for the 'jewel', and <percent_blanked> -21.785156 for the other.
Raistmer:
--- Quote from: Haselgrove on 23 Nov 2008, 08:18:17 am ---
I'm slightly surprised by the blanking report at the start of the result file analysis: <percent_blanked> -18.750000 for the 'jewel', and <percent_blanked> -21.785156 for the other.
--- End quote ---
So, Joe's % estimate and Josh's differ... Interesting, how much % will be in our current totally-blanked run....
Jason G:
Picked one of the non-repetitive signals at random to look at: [playing with numbers still...]
<ap_signal>
<fft_num>30015488</fft_num>
<peak_bin>30024704</peak_bin>
Which I (with less than novice skill) make to be be data_chunk_now: 7503872 + 9216 samples (A bit less than a third into the data chunk?) at sample 30024704
That would place that somewhere: in the vicinity of the blanking index:
"At sample 30035968, data_chunk_now 7508992, strength 12.390625 > 12.100000"
So the peak is 11264 samples before the index... On the edge of the blank perhaps shifted by dedispersion? I'm not sure, but I think this shouldn't be there :-\ [Now where did I see that with before? 20480...]
Oh $@!$#... here I'll wait for Joe's expert analysis, but I reckon that one's an artefact [of some sort]
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