LAL: Status of Unmodeled Burst Search Algorithms LIGO Scientific Collaboration Patrick R Brady University of Wisconsin – Milwaukee LIGO-G010131-00-Z.

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Presentation transcript:

LAL: Status of Unmodeled Burst Search Algorithms LIGO Scientific Collaboration Patrick R Brady University of Wisconsin – Milwaukee LIGO-G Z

3/15/01LIGO Scientific Collaboration - UWM2 burstsearch in LAL Continuing development PRB (Flanagan originally) Windowed FFT based time-frequency transforms Tiling of plane according to »Max and min time durations »Max and min freq bandwidths Likelihood based detection ( Anderson, PB, Creighton, Flanagan ) Exists and works in LAL-0.7 Documentation exists in LSD Bugs: test program incorrectly tests status structure

3/15/01LIGO Scientific Collaboration - UWM3 timefreq in LAL Continuing development Eric Chassande-Mottin Time-frequency transform methods »Wigner-Ville »Pseudo-smoothed Wigner-Ville, »Spectrogram, »Reassigned spectrogram Exists and works in LAL-0.7 Documentation exists (not in LSD) Bugs: Documentation is not included in LSD

3/15/01LIGO Scientific Collaboration - UWM4 tracksearch in LAL Continuing development S. Balasubramanian Applies a burst search technique to time-frequency planes »Explored in literature by Anderson and Balasubramanian »Uses image processing method to find curvilinear features »Second derivative hysteresis threshold technique Exists and works in LAL-0.7 Documentation exists (not in LSD) Bugs: Documentation is not included in LSD

3/15/01LIGO Scientific Collaboration - UWM5 power.so in LALwrapper PRB Executes the excess power burst search in LDAS »it is prototype code Development will continue next week for first release of LALwrapper (coming soon …….) Bugs: »incorrectly computes gps time of events »documentation does not exist in laldoc format

3/15/01LIGO Scientific Collaboration - UWM6 LAL/LALwrapper Bug Tracking