Robust Gravitational Wave Burst Detection and Source Localization in a   Network of Interferometers Using Cross Wigner Spectra
  We discuss a fast cross-Wigner transform based technique for detecting gravitational wave bursts, and estimating the direction of arrival, using a network of (three) non co-located interferometric detectors. The performances of the detector as a function of signal strength and source location, and the accuracy of the direction of arrival estimation are investigated by numerical simulations. 
Rocco P. Croce, Vincenzo Pierro, Fabio Postiglione, Maria Principe and   Innocenzo M. Pinto
gr-qc astro-ph.IM