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/content/asa/journal/jasa/138/6/10.1121/1.4938268
1.
1. T. Cohen, “ More pings raise more questions about missing plane,” http://www.cnn.com/2014/04/07/world/malaysia-alrlines-plane-questions/ (Last viewed December 15, 2015).
2.
2. E. J. Candes, P. R. Charlton, and H. Helgason, “ Detecting highly oscillatory signals by chirplet path pursuit,” Appl. Comput. Harmonic Anal. 24, 1440 (2008).
http://dx.doi.org/10.1016/j.acha.2007.04.003
3.
3. K. G. Kebkal and R. Bannasch, “ Sweep-spread carrier for underwater communication over acoustic channels with strong multipath propagation,” J. Acoust. Soc. Am. 112(5), 20432052 (2002).
http://dx.doi.org/10.1121/1.1504855
4.
4. B. G. Mobasseri and R. S. Lynch, “ Information embedding in sonar by modifications of time-frequency properties,” IEEE J. Ocean. Eng. 99, in press (2015).
http://dx.doi.org/10.1109/JOE.2015.2390734
5.
5. X. Jiang, W.-J. Zeng, and X.-L. Li, “ Time-delay and Doppler scale estimation for wideband acoustic signals in multipath environments,” J. Acoust. Soc. Am. 130(2), 850857 (2011).
http://dx.doi.org/10.1121/1.3609118
http://aip.metastore.ingenta.com/content/asa/journal/jasa/138/6/10.1121/1.4938268
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/content/asa/journal/jasa/138/6/10.1121/1.4938268
2015-12-22
2016-12-09

Abstract

In many underwater acoustics problems such as search and rescue, it is desirable to establish the source of the sonar pings. In this paper a methodology is proposed to watermark sonar pulses prior to transmission by embedding them with a chain of low power chirplets represented by a graph. Watermark detection is formulated using stretch processing where chirplet energies are focused on a single beat frequency only if the graph is traversed along the same path used at the source. The algorithm is tested by simulation in shallow water at varying ranges.

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