Published May 1, 2026
| Version v1
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ORAC-NT: A Template-Free Dual-Channel Detector for Gravitational Wave Transients
Authors/Creators
Description
We present ORAC-NT, a dual-channel anomaly detector
for gravitational wave strain data operating without
waveform templates. The detector combines RMS energy
(sensitive to BBH impulsive signals) and the ORAC H
energy-entropy metric (sensitive to BNS extended signals).
Validated on GW150914 and GW170817 from LIGO GWOSC data.
GW150914 detected via RMS at t=+0.010s; GW170817 detected
via ORAC H at t=-0.260s.
