Results 151 to 160 of about 594,002 (213)

Underwater SLAM Meets Deep Learning: Challenges, Multi-Sensor Integration, and Future Directions. [PDF]

Sensors (Basel)
Heshmat M, Saad Saoud L, Abujabal M, Sultan A, Elmezain M, Seneviratne L, Hussain I.   +6 more
europepmc   +1 more source

Biohybrid Robotic Jellyfish for Swimming-Enhanced Vertical Ocean Profiling. [PDF]

Biomimetics (Basel)
Rutledge KM, Colin SP, Costello JH, Yoder N, Anuszczyk SR, Sutherland KR, Gemmell BL, Dabiri JO.   +7 more
europepmc   +1 more source

In their own words: case studies of adolescent smartphone language preceding suicide-related hospitalizations. [PDF]

NPP Digit Psychiatry Neurosci
Treves IN, Bloom PA, Salem S, Durham K, Zaccaria V, Spence J, Dayan PS, Chernick LS, Blanchard A, Kirshenbaum JS, Trivedi E, Brent DA, Allen NB, Zelazny J, Joyce K, Porta G, Pagliaccio D, Auerbach RP.   +17 more
europepmc   +1 more source

Deep-sea cabled video-observatory provides insights into the behavior at depth of sub-adult male northern elephant seals, Mirounga angustirostris. [PDF]

PLoS One
Frouin-Mouy H, Rountree R, Juanes F, Aguzzi J, De Leo FC.   +4 more
europepmc   +1 more source

Initial assessment of all-season Arctic sea ice thickness from ICESat-2. [PDF]

J Glaciol
Petty A, Cabaj A, Landy JC.
europepmc   +1 more source

Matrix filters for passive sonar

2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002
This paper introduces matrix filters as a tool for localization and detection problems in passive sonar. The outputs of an array of sensors, at some given frequency, can be represented by a vector of complex numbers. A linear filtering operation on the sensor outputs can be expressed as the multiplication of a matrix (called a matrix filter) times this
Vaccaro, Richard J., Harrison, Brian F.
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Collision avoidance passive sonar

Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems - WUWNet '13, 2013
Modems for underwater acoustic communications (acomms) have become nearly as much of a commodity technology as underwater releases or transponder systems. Modems today are at a similar stage as were mobile phones perhaps 15 years ago -- basic communications devices.
Dale Green, Steven J. McManus
openaire   +1 more source

Multirate spectral analysis for passive sonar

Integrated Computer-Aided Engineering, 2003
Because of widespread application in audio and image coding, subband structures are now well understood. Multirate subband implementations provide significant computational advantages while reducing distortion caused by sample rate changes. Some so-called perfect reconstruction systems can even eliminate all aliasing distortion caused by tandeming ...
Jeffrey P. Woodard, Joseph Creekmore
openaire   +1 more source

Sonar Operator Performance Considerations in Passive Sonar Systems

Proceedings of the Human Factors Society Annual Meeting, 1975
Because of rapid developments in passive sonar technology, man-machine interface problems continue to demand human factors studies. This paper discusses display problems, operator variables, and research considerations. Data are presented from a recent study conducted by the authors comparing performance with photographic and static stimulus materials ...
R. J. Hornick, G. Yamashita, J. E. Robinson, H. J. Winkler   +3 more
openaire   +1 more source

Rate Distortion Bounds on Passive Sonar Performance

IEEE Transactions on Signal Processing, 2005
Information theory provides a novel perspective on passive sonar. This approach begins by partitioning the search space and then considers the problem of assigning an unknown source to the correct partition based on pressure observations from a hydrophone array.
Tianzhu Meng, John R. Buck
openaire   +1 more source