As acoustic decoys can simulate the scale of the target through orderly control of the echo delay, simulated acoustic decoys have scale characteristics similar to those of the scaled target.
Zirui Wang +4 more
doaj +1 more source
The recognition of underwater acoustic targets plays a crucial role in marine vessel monitoring. However, traditional underwater target recognition models suffer from limitations, including low recognition accuracy and slow prediction speed.
Zhe Chen +6 more
doaj +1 more source
Nonlinear time-warping made simple: a step-by-step tutorial on underwater acoustic modal separation with a single hydrophone [PDF]
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Bonnel, J., Thode, A., Wright, D., & Chapman, R.
Bonnel, Julien +3 more
core +1 more source
Automatic target recognition of surface vessels in passive sonar using emerging technologies of artificial intelligence and deep learning [PDF]
Objective: Artificial intelligence is a part of computer science that emphasizes the creation of intelligent machines in defense equipment and military equipment.
hassan akbarian +1 more
doaj +1 more source
Comment on “Temporal and spatial variation in harbor seal (Phoca vitulina L.) roar calls from southern Scandinavia” [J. Acoust. Soc. Am. 141, 1824-1834 (2017)] [PDF]
In their recent article, Sabinsky and colleagues investigated heterogeneity in harbor seals' vocalizations. The authors found seasonal and geographical variation in acoustic parameters, warning readers that recording conditions might account for some of ...
Ravignani, A.
core +2 more sources
Wireless recording of the calls of Rousettus aegyptiacus and their reproduction using electrostatic transducers [PDF]
Bats are capable of imaging their surroundings in great detail using echolocation. To apply similar methods to human engineering systems requires the capability to measure and recreate the signals used, and to understand the processing applied to ...
D A Waters +13 more
core +1 more source
Underwater Target Recognition Based on Dynamic Ensemble of Random Forest
Accurate recognition of the target is the key to attacking enemy for underwater acoustic homing weapon. A real-time target recognition method for underwater acoustic homing weapon was proposed based on dynamic ensemble selection technology.
Tao CAO +3 more
doaj +1 more source
Marine Wireless Big Data: Efficient Transmission, Related Applications, and Challenges
The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in extremely ...
Jiang, Tao +3 more
core +1 more source
An Underwater SLAM System using Sonar, Visual, Inertial, and Depth Sensor
This paper presents a novel tightly-coupled keyframe-based Simultaneous Localization and Mapping (SLAM) system with loop-closing and relocalization capabilities targeted for the underwater domain.
Li, Alberto Quattrini +2 more
core +1 more source
On-Site Calibration-Based Estimation Method of Forward Seabed Elevation Using Forward Scan Sonar [PDF]
This paper addresses a novel calibration-based estimation method to measure the forward seabed elevation (FSE) where an area illuminated by forward scan sonar (FSS) for unmanned underwater vehicles (UUVs).
CHO, HYEONWOO +2 more
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