Gravitational wave detection using multiscale chirplets

Document #:

LIGO-P080017-x0

Document type:

P - Publications

Abstract:

A generic 'chirp' of the form h(t) = A(t)cos (t) can be closely approximated by a connected set of multiscale chirplets with quadratically-evolving phase. The problem of finding the best approximation to a given signal using chirplets can be reduced to that of finding the path of minimum cost in a weighted, directed graph, and can be solved in polynomial time via dynamic programming. For a signal embedded in noise we apply constraints on the path length to obtain a statistic for detection of chirping signals in coloured noise. In this paper we present some results from using this test to detect binary black hole coalescences in simulated LIGO noise.

Files in Document:

• P080017-00.pdf (303.4 kB)

Other Files:

• P080017-P.pdf (644.3 kB)

Topics:

• Document Migration from the old DCC
• Public relations

Authors:

• Philip Charlton
• Emmanuel Candes
• Hannes Helgason

Notes and Changes:

Rev P080017-00-Z:
- Full document number: LIGO-P080017-00-Z
- Author(s): Emmanuel Candes; Philip Charlton; Hannes Helgason
- Document date: 2008-02-20
- Document received date: 2008-02-20
- Document entry date: 2008-02-20

Journal References:

Published in Class Quant Grav vol. 25 pg. 184020 (12pp).

Publication Information:

http://www.iop.org/EJ/abstract/0264-9381/25/18/184020