|
|
|
|
|
Yuhao Wang and Zhenkai Zhang
Beamforming technology is very important for passive sonar to detect targets. However, the performance of a beamformer is seriously degraded in practical applications due to the complex and changeable underwater environment. In this paper, a null broaden...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ying Wang, Hongjian Wang, Qing Li, Yao Xiao and Xicheng Ban
At present, the tracking accuracy of underwater passive target tracking is often limited due to models that are overly simple, with low complexity, poor universality, and an inability to learn. In this paper, a cubature Kalman filter (CKF) algorithm base...
ver más
|
|
|
|
|
|
|
|
|
|
|
Qichen Xie, Cheng Chi, Shenglong Jin, Guanqun Wang, Yu Li and Haining Huang
The detection of tonal signals with unknown frequencies is an important area of study in underwater signal processing. A common approach to address this issue is to use the Discrete Fourier Transform (DFT) for observations. When a tone does not lie preci...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yu Hao, Nan Zou and Guolong Liang
Capon beamforming is often applied in passive sonar to improve the detectability of weak underwater targets. However, we often have no accurate prior information of the direction-of-arrival (DOA) of the target in the practical applications of passive son...
ver más
|
|
|
|
|
|
|
|
|
|
|
Won Shin, Da-Sol Kim and Hyunsuk Ko
In submarine warfare systems, passive SONAR is commonly used to detect enemy targets while concealing one?s own submarine. The bearing information of a target obtained from passive SONAR can be accumulated over time and visually represented as a two-dime...
ver más
|
|
|
|
|
|
|
|
|
|
|
Garrett Staines, Gayle Barbin Zydlewski, Haley A. Viehman and Rachel Kocik
Coastal regions are highly used by humans. The growing marine renewable energy (MRE) industry will add to existing anthropogenic pressures in these regions. Regulatory bodies require animal risk assessment before new industrial activities can progress, a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jian Cheng, Liang Cheng, Sensen Chu, Jizhe Li, Qixin Hu, Li Ye, Zhiyong Wang and Hui Chen
Satellite-derived bathymetry (SDB) techniques are increasingly valuable for deriving high-quality bathymetric maps of coral reefs. Investigating the performance of the related SDB algorithms in purely spaceborne active?passive fusion bathymetry contribut...
ver más
|
|
|
|
|
|
|
|
|
|
|
Qiankun Yu, Min Zhu, Wen Zhang, Jian Shi and Yan Liu
Sound source recognition is a very important application of passive sonar. How to distinguish between surface and underwater acoustic sources has always been a challenge. Due to the mixing of underwater target radiated noise and marine environmental nois...
ver más
|
|
|
|
|
|
|
|
|
|
|
Johannes Timmermann, Norbert Hövelmann and Delf Sachau
From a strategic point of view, it is essential to protect underwater vehicles from being detected by opponents. Modern mono- or bistatic sonar systems are capable of precisely determining the position of a watercraft. In order to triangulate the positio...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aleksey Kabanov and Vadim Kramar
The creation of a Marine Internet of Things platform, including the Underwater Internet of Things, is needed to ensure the interaction and digital navigation of heterogeneous marine robotic agents. It is necessary to combine the following robotic agents:...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wen Zhang, Yanqun Wu, Jian Shi, Hongze Leng, Yun Zhao and Jizhou Guo
In shallow water, passive sonar usually has great difficulty in discriminating a surface acoustic source from an underwater one. To solve this problem, a supervised machine learning method using only one hydrophone is implemented in this paper. Firstly, ...
ver más
|
|
|
|
|
|