Published In
Proceedings of the 22nd International Congress on Acoustics
Document Type
Presentation
Publication Date
9-2016
Subjects
Sonar, Signal processing, Underwater acoustics
Abstract
In pulsed active sonar, short duration coded waveforms insonify the area of interest. The low duty cycle limits detection opportunities and decreases average energy. A recent concept is continuous active sonar (CAS), which has continuous source transmission over a broad frequency band. The low duty cycle limits detection opportunities and decreases average energy. A recent concept is continuous active sonar (CAS), which has continuous source transmission over a broad frequency band. Previous work by the authors has investigated the utility of extracting the propagation-induced frequency structure in pulsed sonar. The broadband, continuous CAS waveforms particularly lend themselves to this approach. The presence of active striations in CAS data has been recently identified in the shallow water Target and Reverberation Experiment (TREX13). In this paper we provide additional examples of frequency structure in both the TREX13 and simulated data, and discuss methods for exploiting the striations to improve tracking performance.
Persistent Identifier
http://archives.pdx.edu/ds/psu/20216
Citation Details
Lisa Zurk, Daniel Rouseff, and Scott Schecklman. Exploitation of frequency information in continuous active SONAR. In Proceedings of the 22nd International Congress on Acoustics (ICA 2016), pages 2722–2728, 2016.