TestCase: blc25_2bit_guppi_57895_47387_HIP91358_0034.24610.818.23.46.191.vlar

Message boards : Number crunching : TestCase: blc25_2bit_guppi_57895_47387_HIP91358_0034.24610.818.23.46.191.vlar
Message board moderation

To post messages, you must log in.

Previous · 1 · 2

AuthorMessage
Profile Raistmer
Volunteer developer
Volunteer tester
Avatar

Send message
Joined: 16 Jun 01
Posts: 6014
Credit: 84,578,541
RAC: 35,344
Russia
Message 1904155 - Posted: 1 Dec 2017, 16:31:24 UTC - in response to Message 1904021.  

Well,I think thedifference occurs well before comparison block started on peak/average calculation stage.
If one wants to get further with this task one could just tweak threshold a little (threshold stored inside task itself) and this will makethe app reports more pulses.
That way even apps that report 10 pulses currently can report that 11th pulse too. So we can see what they calculated for this task.
The area of interest (in task header) is:
  <analysis_cfg>
    <spike_thresh>24</spike_thresh>
    <spikes_per_spectrum>1</spikes_per_spectrum>
    <autocorr_thresh>17.7999992</autocorr_thresh>
    <autocorr_per_spectrum>1</autocorr_per_spectrum>
    <autocorr_fftlen>131072</autocorr_fftlen>
    <gauss_null_chi_sq_thresh>2.46249485</gauss_null_chi_sq_thresh>
    <gauss_chi_sq_thresh>1.41999996</gauss_chi_sq_thresh>
    <gauss_power_thresh>3</gauss_power_thresh>
    <gauss_peak_power_thresh>3.20000005</gauss_peak_power_thresh>
    <gauss_pot_length>64</gauss_pot_length>
    <pulse_thresh>20.7340908</pulse_thresh>
    <pulse_display_thresh>0.5</pulse_display_thresh>
    <pulse_max>40960</pulse_max>
    <pulse_min>16</pulse_min>
    <pulse_fft_max>8192</pulse_fft_max>
    <pulse_pot_length>256</pulse_pot_length>
    <triplet_thresh>9.73841</triplet_thresh>
    <triplet_max>131072</triplet_max>
    <triplet_min>16</triplet_min>
    <triplet_pot_length>256</triplet_pot_length>
    <pot_overlap_factor>0.5</pot_overlap_factor>
    <pot_t_offset>1</pot_t_offset>
    <pot_min_slew>0.00410000002</pot_min_slew>
    <pot_max_slew>0.0203000009</pot_max_slew>
    <chirp_resolution>0.1665</chirp_resolution>
    <analysis_fft_lengths>262136</analysis_fft_lengths>
    <bsmooth_boxcar_length>8192</bsmooth_boxcar_length>
    <bsmooth_chunk_size>32768</bsmooth_chunk_size>
    <chirps>
    <chirp_parameter_t>
      <chirp_limit>30</chirp_limit>
      <fft_len_flags>262136</fft_len_flags>
    </chirp_parameter_t>
    <chirp_parameter_t>
      <chirp_limit>100</chirp_limit>
      <fft_len_flags>65528</fft_len_flags>
    </chirp_parameter_t>
  </chirps>
  <pulse_beams>1</pulse_beams>
  <max_signals>30</max_signals>
  <max_spikes>8</max_spikes>
  <max_autocorr>8</max_autocorr>
  <max_gaussians>0</max_gaussians>
  <max_pulses>0</max_pulses>
  <max_triplets>0</max_triplets>
  <keyuniq>-12226561</keyuniq>
  <credit_rate>2.8499999</credit_rate>
</analysis_cfg>


In particular, these 2 thresholds
<pulse_thresh>20.7340908</pulse_thresh>
<pulse_display_thresh>0.5</pulse_display_thresh>

If threshold will be lowered (I think first one should be used for changing reportable pulses), more signals will be reported.
SETI apps news
We're not gonna fight them. We're gonna transcend them.
ID: 1904155 · Report as offensive
Previous · 1 · 2

Message boards : Number crunching : TestCase: blc25_2bit_guppi_57895_47387_HIP91358_0034.24610.818.23.46.191.vlar


 
©2018 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.