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Submesoscale Eddies Observation Using High-Frequency Radars: A Case Study in the Northern South China Sea

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Eddies are of great concern to ship operations and have an important influence on heat transfer in the sea. In this article, a highly concurrent and a......

Underwater Acoustic Signal Classification Based on Sparse Time-Frequency Representation and Deep Learning

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (3)

For classification of underwater acoustic signals, we propose a novel sparse anisotropic chirplet transform (ACT) to reveal fine time-frequency struct......

Ocean Surface Current Inversion With Anchored Floating High-Frequency Radar: Yaw Compensation

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (3)

Deploying a high-frequency (HF) radar on one anchored floating platform for the maneuverability appears to be a good alternative. In this case, becaus......

Multimodal Sparse Time-Frequency Representation for Underwater Acoustic Signals

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Multiple features can be extracted from time-frequency representation of signals for the purpose of acoustic event detection. However, many underwater......

Residual Learning With Multifactor Extreme Learning Machines for Waveheight Prediction

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

We explore the use of extreme learning machines (ELMs) for ocean waveheight prediction. Ocean waveheight variations are affected by multiple factors, ......

Target Bearing Estimation for Ship-Borne HFSWR Using Doppler Effect and Very Small Antenna Array

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (3)

In this article, a new target bearing angle estimation method for ship-borne high-frequency surface-wave radar (HFSWR) is presented. This new method i......

The Optimal Lift-Drag Ratio of Underwater Glider for Improving Sailing Efficiency

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (3)

It is generally believed that the lift-drag ratio is closely related to the hydrodynamic performance and sailing efficiency of the underwater glider. ......

Frequency-Domain Decision Feedback Equalization for Single-Carrier Transmissions in Fast Time-Varying Underwater Acoustic Channels

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Frequency-domain equalization (FDE) is a computationally efficient method to recover underwater acoustic single-carrier transmissions in a multipath e......

Optimization of Flight Parameters for Petrel-L Underwater Glider

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (3)

With recent developments in battery technology and low power technology, biofouling, a process referring to the gradual accumulation of organisms on u......

The Same Reflective Characteristics for Different Effective Geoacoustic Parameters in Different Models

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Acoustical properties of the sea bottom can be described with a geoacoustic (GA) model comprising several layers characterized by the values of GA par......

Motion Analysis of an Autonomous Underwater Vehicle Tethered With an Optical Fiber for Real-Time Surveillance

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Autonomous underwater vehicles (AUVs) are playing an increasingly important role in ocean exploration. In some applications, an AUV can be tethered by......

Acoustic Seabed Classification Based on Multibeam Echosounder Backscatter Data Using the PSO-BP-AdaBoost Algorithm: A Case Study From Jiaozhou Bay, China

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

When backpropagation neural network (BPNN) is often applied to supervised classification, problems arise, including a slow convergence rate, local ext......

Spatial Diversity and Geoacoustic Inversion Using Distributed Sources and Receivers

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Matched field inversion (MFI) has been studied extensively in shallow water environments to invert for the geoacoustic parameters using a vertical or ......

Development of a Real-Time Latching Control Algorithm Based on Wave Force Prediction

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (2)

Optimal wave energy control is noncausal as the control command is optimized based on incoming wave force. Therefore, implementation of wave energy co......

Sparsity-Aware Adaptive Turbo Equalization for Underwater Acoustic Communications in the Mariana Trench

期刊: IEEE JOURNAL OF OCEANIC ENGINEERING, 2021; 46 (1)

Reliable acoustic communication between submersibles and surface vessels plays a critical role in deep-sea exploration. Adaptive turbo equalization ca......

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