Commit ac166592 authored by Tito Dal Canton's avatar Tito Dal Canton

Improve PyCBC Live description for O3

parent 2d1487be
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......@@ -46,12 +46,15 @@ coincidence test.
**PyCBC Live** [#PyCBC1]_ [#PyCBC2]_ estimates the noise background by
performing time-shifted analyses using triggers from a few hours of recent
data. Single-detector triggers from one of the LIGO detectors are time shifted
by every possible multiple of 100 ms, thus any resulting coincidence must be
unphysical given the :math:`\sim 10` ms light travel time between detectors.
All such coincidences are recorded and assigned a ranking statistic; the false
alarm rate is then estimated by counting accidental coincidences louder than a
given candidate, i.e. with a higher statistic value.
data. Single-detector triggers from one detector are time shifted by every
possible multiple of 100 ms, thus any resulting coincidence must be unphysical
given the :math:`\sim 10` ms light travel time between detectors. All such
coincidences are recorded and assigned a ranking statistic. The false alarm
rate is then estimated by counting accidental coincidences ranked higher than a
given candidate, i.e. with a higher statistic value. When three detectors are
observing at the time of a particular candidate, the most significant double
coincidence is selected, and its false alarm rate is modified to take into
account the data from the remaining detector.
**SPIIR** [#SPIIR]_ [#SPIIRThesis]_ applies summed parallel infinite impulse
response (IIR) filters to approximate matched-filtering results. It selects
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