Results 51 to 60 of about 4,113,395 (325)

Investigation and Numerical Simulation of the Acoustic Target Strength of the Underwater Submarine Vehicle

Inventions, 2022
Modern weapon systems’ survival hinges on their detection capabilities more than anything else. In the active sonar equation, the acoustic target strength is crucial.
Kaveripakam Sathish, Rajesh Anbazhagan, Ravikumar Chinthaginjala Venkata, Fabio Arena, Giovanni Pau   +4 more
doaj   +1 more source

Transparent and scalable client-side server selection using netlets [PDF]

, 2003
Replication of web content in the Internet has been found to improve service response time, performance and reliability offered by web services. When working with such distributed server systems, the location of servers with respect to client nodes is ...
Collier, Martin, Dharmalingam, Kalaiarul
core   +2 more sources

A Survey of Underwater Acoustic Data Classification Methods Using Deep Learning for Shoreline Surveillance

Sensors, 2022
This paper presents a comprehensive overview of current deep-learning methods for automatic object classification of underwater sonar data for shoreline surveillance, concentrating mostly on the classification of vessels from passive sonar data and the ...
Lucas C. F. Domingos, Paulo E. Santos, Phillip S. M. Skelton, Russell S. A. Brinkworth, Karl Sammut   +4 more
doaj   +1 more source

Advances In Active Sonar Tracking

, 2006
Publication in the conference proceedings of EUSIPCO, Florence, Italy ...
Craig Carthel, Stefano Coraluppi
openaire   +2 more sources

Changes in the acoustic activity of beaked whales and sperm whales recorded during a naval training exercise off eastern Canada

Scientific Reports, 2022
Experimental research has shown that beaked whales exhibit strong avoidance reactions to naval active sonars used during antisubmarine warfare training exercises, including cessation of echolocation and foraging activity.
Joy E. Stanistreet, Wilfried A. M. Beslin, Katie Kowarski, S. Bruce Martin, Annabel Westell, Hilary B. Moors-Murphy   +5 more
doaj   +1 more source

Zero-Shot Learning-Based Recognition of Highlight Images of Echoes of Active Sonar

Electronics
Reducing the impact of underwater disturbance targets and improving the ability to recognize real moving targets underwater are important directions of active sonar research.
Xiaochun Liu, Yunchuan Yang, Xiangfeng Yang, Liwen Liu, Lei Shi, Yongsheng Li, Jianguo Liu   +6 more
semanticscholar   +1 more source

PHD and CPHD Algorithms Based on a Novel Detection Probability Applied in an Active Sonar Tracking System

Applied Sciences, 2017
Underwater multi-targets tracking has always been a difficult problem in active sonar tracking systems. In order to estimate the parameters of time-varying multi-targets moving in underwater environments, based on the Bayesian filtering framework, the ...
Xiao Chen, Yaan Li, Yuxing Li, Jing Yu
doaj   +1 more source

APES Beamforming Applied to Medical Ultrasound Imaging [PDF]

, 2009
As of today, sonar imaging is the most effective means of documenting the subsea environment. Existing sonar imaging systems generally rely on conventional beamforming methods to form the image.
Austeng, Andreas, Blomberg, Ann E. A., Holfort, Iben Kraglund, Holm, Sverre, Jensen, Jørgen Arendt, Synnevåg, Johan-Fredrik   +5 more
core   +2 more sources

Discovery and mapping of the Triton seep site, Redondo Knoll: fluid flow and microbial colonization within an oxygen minimum zone [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Wagner, J. K. S., Smart, C., & German, C. R.
German, Christopher R., Smart, Clara, Wagner, Jamie K.S.   +2 more
core   +1 more source

Waveform Design Using Coprime Frequency-Modulated Pulse Trains for Reverberation Suppression of Active Sonar

Journal of Marine Science and Engineering, 2022
Over the last two decades, low-frequency active sonar has become an attractive tool for underwater target detection. The reverberation to signal ratio (RSR) of transmitted waveforms is an important factor affecting the detection capability of low ...
Xiaobin Cui, Cheng Chi, Shuqiu Li, Zigao Li, Yu Li, Haining Huang   +5 more
doaj   +1 more source