Results 81 to 90 of about 1,348,870 (188)

Underwater acoustic target recognition under working conditions mismatch

Xibei Gongye Daxue Xuebao
The working conditions of the ship will have a great impact on the radiated noise of the ship. Even if the same ship is traveling in the same sea area, different working conditions will produce different radiated noise, thus affecting the accuracy of ...
WANG Haitao, JIN Anqi, YANG Shuang, ZENG Xiangyang   +3 more
doaj   +1 more source

Optimized Ship-Radiated Noise Feature Extraction Approaches Based on CEEMDAN and Slope Entropy. [PDF]

Entropy (Basel), 2022
Li Y, Tang B, Jiao S.
europepmc   +1 more source

Underwater radiated noise model of marine object

, 2020
The paper is devoted to the developing a comprehensive model for underwater radiated noise of marine object in order to model and simulate sonar systems.
Prokopovich, V V, Shafranyuk, A V
core   +1 more source

Block-sparse enhancement and detection of envelope modulation on noise for ship radiated noise

JASA Express Letters
Underwater target recognition is essential for ocean monitoring, with ship radiated noise analysis being a fundamental technique. This paper proposes a detection method based on block sparse enhancement. A harmonic dictionary is constructed and block sparse reconstruction is applied to enhance line spectrum components in the Detection of Envelope ...
Ge Yu, Mingxun Liu, Yanli Chen
openaire   +2 more sources

Ship Radiated Noise Recognition Technology Based on ML-DS Decision Fusion. [PDF]

Comput Intell Neurosci, 2021
Wang B, Wu C, Zhu Y, Zhang M, Li H, Zhang W.   +5 more
europepmc   +1 more source

Underwater Acoustic Target Recognition Based on Sub-Regional Feature Enhancement and Multi-Activated Channel Aggregation

Journal of Marine Science and Engineering
Feature selection and fusion in ship radiated noise-based underwater target recognition have remained challenging tasks. This paper proposes a novel feature extraction method based on multi-dimensional feature selection and fusion. Redundant features are
Zhongxiang Zheng, Peng Liu
doaj   +1 more source

Double Feature Extraction Method of Ship-Radiated Noise Signal Based on Slope Entropy and Permutation Entropy. [PDF]

Entropy (Basel), 2021
Li Y, Gao P, Tang B, Yi Y, Zhang J.
europepmc   +1 more source

Optimized Variational Mode Decomposition and Permutation Entropy with Their Application in Feature Extraction of Ship-Radiated Noise. [PDF]

Entropy (Basel), 2021
Xie D, Hong S, Yao C.
europepmc   +1 more source

Model scale measurements of surface ship radiated flow noise

, 2009
Advances in weapon and sensor capabilities are driving an increased interest in the control of underwater signatures of naval platforms. The control of machinery and propeller noise is well understood, but there is a shortfall of knowledge of the ...
Jong, C.A.F. de, Hasenpflug, H., Bosschers, J.   +2 more
core  

Detection Line Spectrum of Ship Radiated Noise Based on a New 3D Chaotic System. [PDF]

Sensors (Basel), 2021
Hu G, Wang K, Liu L.
europepmc   +1 more source