Results 131 to 140 of about 21,051 (188)

Underwater Robots and Key Technologies for Operation Control. [PDF]

Cyborg Bionic Syst
Sun L, Wang Y, Hui X, Ma X, Bai X, Tan M.   +5 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Examining the robustness of automated aural classification of active sonar echoes

The Journal of the Acoustical Society of America, 2014
Active sonar systems are used to detect underwater man-made objects of interest (targets) that are too quiet to be reliably detected with passive sonar. Performance of active sonar can be degraded by false alarms caused by echoes returned from geological seabed structures (clutter) in shallow regions.
Stefan M, Murphy, Paul C, Hines
openaire   +4 more sources

Perception-based automatic classification of impulsive-source active sonar echoes

The Journal of the Acoustical Society of America, 2007
Impulsive-source active sonar systems are often plagued by false alarm echoes resulting from the presence of naturally occurring clutter objects in the environment. Sonar performance could be improved by a technique for discriminating between echoes from true targets and echoes from clutter. Motivated by anecdotal evidence that target echoes sound very
Victor W, Young, Paul C, Hines
openaire   +4 more sources

Featureless classification for active sonar systems

OCEANS'10 IEEE SYDNEY, 2010
Active sonar systems depend on classification algorithms to identify target echoes and suppress false alarms. Historically, classifiers use a set of empirically derived features that exhibit some statistical separation between background clutter and target echoes.
M. E. Soul, J. B. Broadwater
openaire   +2 more sources

Active sonar clutter classification using higher order moments

Proceedings of Meetings on Acoustics, 2010
The statistics of normalized matched-filter echoes from an active sonar system operating in a myriad of oceanic environments has been studied extensively for three broad clutter classes including using low-order cumulants to classify subregions of the data [Gelb et al., Proceedings of the ISURC (2008) and references therein].
James M. Gelb, Andrew W. Oldag
openaire   +1 more source

Object classification and acoustic imaging with active sonar

The Journal of the Acoustical Society of America, 1992
The theoretical underpinnings of underwater acoustic classification and imaging using high-frequency active sonar are studied. All essential components of practical classification systems are incorporated in a Bayesian theoretic framework. The optimum decision rules and array processing are presented and evaluated.
J G, Kelly, R N, Carpenter, J A, Tague
openaire   +2 more sources

Active sonar classification using Bayesian decision theory

[1990] Proceedings. The Twenty-Second Southeastern Symposium on System Theory, 2002
Consideration is given to the performance analysis of optimal sonar classification. To perform active classification, a known waveform is transmitted into a medium and directed toward a region called the test volume. An array of N sensors is used to pick up the backscattered signal energy reflected from the M cells of the test volume, and the data are ...
R.N. Carpenter, J.G. Kelly, J.A. Tague, N.K. Haddad   +3 more
openaire   +1 more source