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Excellence in Review 2023 IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-16 Karl von Ellenrieder
This marks the 14th year where we celebrate excellence in review. We extend our deep appreciation to all the reviewers and Associate Editors who have generously contributed their time and expertise toward the editorial process of the journal.
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Compressive Sensing of Cyclic Bispectrum IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-16 Umut Frat, Tayfun Akgül
A method based on higher order cyclostationary statistics is introduced to acquire propeller cavitation noise characteristics. The third-order cyclic cumulant spectrum, also known as the cyclic bispectrum, is derived, and its sparsity is demonstrated for an amplitude-modulated propeller noise model. Cyclic modulation bispectrum (CMBS) is proposed for the feasible approximation of the cyclic bispectrum
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Study of a Multicoil Electromagnetic Wave Power Takeoff System With Pneumatic Velocity Upconversion Mechanism Targeting Low-Frequency Input IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-16 Hao Tian, Boyang Zhou, Yongjun Gong
To build efficient and portable wave energy conversion devices, energy-dense power takeoff (PTO) systems are required. Contemporary PTOs developed for wave power stations are focused on the year-round averaged sea condition, leading to undesirable performance under low wave frequencies. Facing the challenge, a multicoil electromagnetic wave power takeoff (ME-PTO) with a pneumatic velocity upconversion
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Design and Implementation of Medium Access Control Protocol for Magneto-Inductive Wireless Sensor Networks Using Low Power Sensor Nodes IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-16 Niaz Ahmed, Gang Qiao, Yahong Rosa Zheng, David Johannes Pommerenke
Magneto-inductive (MI) wireless sensor networks (MIWSNs) are rapidly emerging networks that offer a wide variety of applications due to their similar performance in air, underground, and underwater mediums. With the increasing demand of using MIWSNs for different applications, the need for an efficient medium access control (MAC) protocol to better utilize the available channels also increases. This
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SISC: A Feature Interaction-Based Metric for Underwater Image Quality Assessment IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-16 Xiaohui Chu, Runze Hu, Yutao Liu, Jingchao Cao, Lijun Xu
Underwater images are important in a range of image-driven applications, such as marine biology and underwater surveillance. However, underwater imaging is subject to several factors that can severely degrade image quality, i.e., light absorption and scattering within the water column. An effective underwater image quality assessment (UIQA) metric is therefore needed to accurately quantify image quality
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Hydrodynamic Analysis of Payload Bay Berthing for Underwater Vehicles IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-15 Zachary L. Cooper-Baldock, Paulo E. Santos, Russell S. A. Brinkworth, Karl Sammut
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Fast Estimation of Complex High-Resolution Range Profiles of Ships via Amplitude–Position Bi-Iterative Sparse Recovery Algorithm IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-15 Hai-Long Su, Peng-Lang Shui
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Real-Time In-Situ Passive Acoustic Array Beamforming From the AutoNaut Wave-Propelled Uncrewed Surface Vessel IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-10 Alfie Anthony Treloar, Hugh Maclean, Jan Bujalka, Jon Narramore, Ben Thomas, Philippe Blondel, Alan Hunter
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CGF-Unet: Semantic Segmentation of Sidescan Sonar Based on Unet Combined With Global Features IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-10 Yushan Sun, Haotian Zheng, Guocheng Zhang, Jingfei Ren, Guoyang Shu
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Recognizing the State of Motion by Ship-Radiated Noise Using Time-Frequency Swin-Transformer IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-09 Fan Wu, Haiyang Yao, Haiyan Wang
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Cyclostationary Feature Distortion for Secure Underwater Acoustic Transmissions IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-09 François-Xavier Socheleau, Christophe Laot, Sébastien Houcke
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Occlusion Modeling for Coherent Echo Data Simulation: A Comparison Between Ray-Tracing and Convex-Hull Occlusion Methods IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-09 Benjamin Thomas, Ciaran Sanford, Alan J. Hunter
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Applying an Uncrewed Surface Vessel to Measure Under-Pier Bathymetry IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-09 Jessica E. Carilli, Regina A. Guazzo, Angelica R. Rodriguez
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Path Selection in Parallel Multihop UVLC Systems Over Turbulence Channels IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-04-09 Mohammed Elamassie
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Spatial Power Spectrum Estimation Under Strong Interferences Using Beam-Space Fast Nonnegative Sparse Bayesian Learning IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-25 Jichen Chu, Lei Cheng, Wen Xu
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Robust Chinese Remainder Theorem–Based Synthetic Aperture Sonar Motion Estimation IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-19 Cheng Chi, Shiping Chen, Rongxing Zhong, Pengfei Zhang, Peng Wang, Yu Li, Jiyuan Liu, Haining Huang
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Signals-of-Opportunity-Based Hydrophone Array Shape and Orientation Estimation IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-18 Isaac Skog, Magnus Lundberg Nordenvaad, Gustaf Hendeby
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Local Polynomial Interpolation Method Optimization in the Process of Digital Terrain Model Creation Based on Data Collected From a Multibeam Echosounder IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-18 Wojciech Maleika
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Experimental and Numerical Investigation on the Performance of a Moored Pitching Wave Energy Conversion System IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-18 Bruno Paduano, Fabio Carapellese, Edoardo Pasta, Mauro Bonfanti, Sergej Antonello Sirigu, Dario Basile, Domenica Pizzirusso, Nicoláas Faedo, Giuliana Mattiazzo
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The Impact of the Spatial Variability of the Seafloor on Midfrequency Sound Propagation During the Target and Reverberation Experiment 2013 IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-14 Brian T. Hefner, Dajun Tang, William S. Hodgkiss
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Sonar Image Generation by MFA-CycleGAN for Boosting Underwater Object Detection of AUVs IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-13 Jianqun Zhou, Yang Li, Hongmao Qin, Pengwen Dai, Zilong Zhao, Manjiang Hu
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Characterization of the Terra Nova Bay Polynya Using Dual-Polarimetric C-Band SAR Measurements IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-13 Giovanna Inserra, Andrea Buono, Ferdinando Nunziata, Maurizio Migliaccio, Flavio Parmiggiani, Giuseppe Aulicino
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ADRC-Based Underwater Navigation Control and Parameter Tuning of an Amphibious Multirotor Vehicle IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-11 Zhongguang Li, Shuang Liang, Mingming Guo, Hua Zhang, Heng Wang, Zebin Li, Haoyang Li
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Analysis and Suppression of Range-Domain Periodic Interference in High-Frequency FMICW Radar IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-08 Shuqin He, Liyun Bai, Hao Zhou, Yingwei Tian, Da Huang, Caijun Wang, Jing Yang
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Blurriness-Guided Underwater Salient Object Detection and Data Augmentation IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-03-05 Yan-Tsung Peng, Yu-Cheng Lin, Wen-Yi Peng, Chen-Yu Liu
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Data Rate Performance of Mobile Multiuser MIMO Underwater Acoustic Communication Systems IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-27 Antony Pottier, Pierre-Jean Bouvet, Beatrice Tomasi, Charles Vanwynsberghe
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Adaptive Zigzag Mapping of a Patchy Field by a Long-Range Autonomous Underwater Vehicle IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-20 Yanwu Zhang, Brett W. Hobson, Brian Kieft, Michael A. Godin, Thomas Ravens, Michael Ulmgren
Spatial heterogeneity and temporal evolution are intrinsic features of some important oceanic processes, e.g., harmful algal blooms and oil spills, where aggregations of organisms or materials are localized and noncontinuous. In a sparse patchy field, routine lawnmower-mode or zigzag surveys by ships or autonomous platforms are not efficient since a large proportion of the survey time is spent on no-patch
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Wave Energy Converter Power Take-Off Modeling and Validation From Experimental Bench Tests IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-15 Simone Giorgi, Ryan G. Coe, Meagan M. Reasoner, Giorgio Bacelli, Dominic D. Forbush, Scott Jensen, François Cazenave, Andrew Hamilton
This article describes the implementation of a new numerical model of the power take-off system installed in the Monterey Bay Aquarium Research Institute wave energy converter, a device developed to provide power to various oceanic research missions. The simultaneous presence of hydraulic, pneumatic, and electrical subsystems in the power take-off system represents a significant challenge in forging
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Probability-Based Complex-Valued Fast Iterative Shrinkage-Thresholding Algorithm for Deconvolution Beamforming IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-15 Shiyao Jiang, Rongxin Jiang, Xuesong Liu, Boxuan Gu, Yaowu Chen
Conventional beamforming is widely used in sonars and radars owing to its robustness and low complexity; however, it suffers from low beam resolution and high-intensity sidelobes. Various imaging deblurring methods have been used in deconvolution beamforming to improve the beam resolution. A considerable limitation of these intensity-based methods is that the real-valued model mismatches the signals
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Prior-Based Underwater Enhanced Image Quality Assessment Network IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-15 Zheyin Wang, Liquan Shen, Zhengyong Wang, Yufei Lin, Jinbo Chen
Underwater images generally suffer from color cast and haze effects due to light attenuation and scattering, which leads to image quality degradation and poor recognition of image content by autonomous machines. Most of the existing enhancement algorithms try to remove these distortions of underwater images but do not perform perfectly. Moreover, there is no quality evaluation metric that can accurately
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Analysis and Compensation of Acoustic Rolling Shutter Effect of Acoustic-Lens-Based Forward-Looking Sonar IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-14 Jiayi Su, Jingyu Qian, Xingbin Tu, Fengzhong Qu, Yan Wei
As the demand for ocean observations increases, the quality requirements for sonar imaging are becoming increasingly exacting. The temporal synthesis strategy provides the acoustic-lens-based forward-looking sonar (ALFLS) with ultrahigh resolution but also causes the imaging content to be distorted when the sonar is moving at a high speed. This limits the application of sonar to low-speed or stationary
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Editorial Farewell From Your Outgoing EiC IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-08 Mandar Chitre
I started my term as Editor-in-Chief (EiC) of the IEEE Journal of Oceanic Engineering in January 2018. It has been a great privilege to have had the opportunity to serve this research community for the past six years, but it is now time to say farewell. When I started my term, I knew very little of what to expect. It has indeed been an interesting learning journey for me, and a rewarding one. I have
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Editorial Hello From Your New EiC IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-08 Karl von Ellenrieder
The IEEE Journal of Oceanic Engineering has long played a key role in influencing, furthering, and sustaining new research, not only because of its high technical standards and strong scientific integrity, but because of its timeliness in addressing novel developments in a highly multidisciplinary field. Like many others in the oceanic engineering community, I am proud to consider it my technical home
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Editorial Presenting Abstracts of Accepted/Published JOE Papers at MTS/IEEE OCEANS Conferences IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-08 Karl von Ellenrieder
The OCEANS Conferences are the flagship conferences of the IEEE Oceanic Engineering Society. The IEEE Journal of Oceanic Engineering (JOE) has long encouraged OCEANS authors to develop their short conference papers into significantly longer journal articles with the inclusion of additional novel results, and by expanding them to be more comprehensive. For information about how to do this, I encourage
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Guest Editorial: Introduction to the Special Issue on Advanced Machine Learning Methodologies for Underwater Image and Video Processing and Analysis IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-08 Chongyi Li, Haiyong Zheng, Runmin Cong, Saeed Anwar, Sam Kwong
In the realm of ocean engineering, underwater images and videos serve as vital carriers of information. However, the challenging conditions of underwater imaging often lead to quality degradation in captured content. These degradations, encompassing issues, such as diminished contrast, color casts, blurred details, and uneven brightness, not only hinder human perception but also present formidable
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Transmission of High-Definition Video Signals and Detection of the Objects Underwater Using Surface Electromagnetic Waves IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-09 Igor I. Smolyaninov, Quirino Balzano, Mark Barry
In this article a portable radio communication system operating in the 30-MHz band and capable of transmitting high-definition live underwater video images is presented. The system operation is based on launching electromagnetic surface waves propagating along the water–air interface using specially designed surface wave antennas. Since the propagation length of the surface electromagnetic waves far
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On the Physical Layer Security of Underwater Optical Wireless Communication Networks IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-06 Elmehdi Illi, Marwa Qaraqe
This article deals with the secrecy analysis of an underwater optical wireless communication (UOWC) system operating under the presence of underwater turbulence and geometric path loss. The considered system consists of either a single transmit laser diode (LD) and multiple receive photodetectors (PD), i.e., single-input multiple-output (SIMO), employing maximal-ratio combining (MRC) technique, or
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Experimental Study on Underwater Cylindrical Acoustic Wave Generated by High-Voltage Pulse Excited Cable IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-02-02 Linwei Li, Jianglong Zheng, Jinxing Xie, Xiaoxin Huang, Biao Jiang, Yunge Zhang, Yifan Huang
This article presents a method for using a conventional high-voltage cable as a transducer and exciting it with a pulse power supply to generate perfect cylindrical acoustic waves in water. The experimental results prove that the acoustic pulse strictly follows the propagation law of cylindrical waves. There is a slight fluctuation of sound pressure in the direction parallel to the cable and no directivity
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Temporal Correlation and Message-Passing-Based Sparse Bayesian Learning Channel Estimation for Underwater Acoustic Communications IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-31 Jingwei Yin, Guangjun Zhu, Xiao Han, Longxiang Guo, Lin Li, Wei Ge
To mitigate the error propagation of single-carrier time-domain equalization (SC-TDE) with insufficient observation data, this article proposes a low-complexity message-passing-based SC-TDE algorithm. First, the temporal correlation (TC) between subblocks is exploited to improve the performance of conventional message-passing-based sparse Bayesian learning (SBL) when the data are insufficient. The
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Discrete Vortex Method-Based Fish-Like Locomotion Modeling IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-17 Qianqian Zou, Chao Zhou, Chunhui Zhu, Zhuoliang Zhang, Junfeng Fan
In nature, fish can achieve efficient swimming through vortex control, which is also a crucial factor in the propulsion of biomimetic robotic fish. Existing analytical models of robotic fish generally do not consider vortices. In addition, numerical methods for solving fluid dynamics are complex and computationally intensive. In this article, based on the discrete vortex method (DVM), the point vortex
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Receiver Enhancement for Differentially Encoded Underwater Acoustic OFDM Incorporating Amplitude and Phase Mismatches IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-17 Lei Wan, Ming Zhao
Differential phase shift keying encoded underwater acoustic orthogonal frequency division multiplexing (OFDM) systems have been extensively investigated in recent years due to their robust performance and efficient use of bandwidth with no overhead on pilot subcarriers for channel estimation. Conventional differential detection schemes usually assume that the channel frequency responses on consecutive
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Vector-Approximate-Message-Passing-Based Channel Estimation for MIMO-OFDM Underwater Acoustic Communications IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-17 Wenxuan Chen, Jun Tao, Lu Ma, Gang Qiao
Accurate channel estimation (CE) is critical to the performance of orthogonal frequency-division multiplexing (OFDM) underwater acoustic (UWA) communications, especially under multiple-input multiple-output (MIMO) scenarios. In this article, we explore vector approximate message passing (VAMP) coupled with expectation-maximization (EM) to obtain CE for MIMO OFDM UWA communications. The EM-VAMP-CE scheme
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Interference-Constrained Scheduling of a Cognitive Multihop Underwater Acoustic Network IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-17 Chen Peng, Urbashi Mitra
This article investigates optimal scheduling for a cognitive multihop underwater acoustic network (UAN) with a primary user interference constraint. The network consists of primary and secondary users, with multihop transmission adopted for both user types to provide reliable communications. Critical characteristics of underwater acoustic channels, including significant propagation delay, distance-and-frequency
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Maximum Information Transfer and Minimum Loss Dehazing for Underwater Image Restoration IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-11 Fei Li, Xiaomao Li, Yan Peng, Bin Li, Yang Zhai
Underwater images typically exhibit color distortion and poor visibility due to light absorption and scattering. Currently, existing methods always overcompensate for degraded color and contrast due to a lack of adaptation, which results in an unnatural appearance and contrast loss. This article combines the merits of conventional color transfer technology and dehazing to improve underwater image quality
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Joint Equalization and Self-Interference Cancellation for Underwater Acoustic In-Band Full-Duplex Communication IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-11 Mohammad Towliat, Zheng Guo, Leonard J. Cimini, Xiang-Gen Xia, Aijun Song
In-band full-duplex (IBFD) communication in underwater acoustic channels is challenged by strong and time-varying self-interference (SI). To detect data symbols, the receiver needs to suppress the SI and equalize the resultant signal to compensate for the intersymbol interference (ISI) caused by the remote transmission (RT) channel. In this article, we develop a new receiver that combines adaptive
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End-to-End Geoacoustic Inversion With Neural Networks in Shallow Water Using a Single Hydrophone IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2024-01-04 Ariel Vardi, Julien Bonnel
This article presents a deep learning (DL) method to perform joint source detection and environmental inversion of low-frequency dispersed impulse signals recorded on a single hydrophone, in a fully automated way, with the inversion part covering both source localization (range and depth) and geoacoustic inversion (with the seabed modeled as a single sediment layer over a basement). The benchmark used
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Is Underwater Image Enhancement All Object Detectors Need? IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-12-29 Yudong Wang, Jichang Guo, Wanru He, Huan Gao, Huihui Yue, Zenan Zhang, Chongyi Li
Underwater object detection is a crucial and challenging problem in marine engineering and aquatic robotics. The difficulty is partly because of the degradation of underwater images caused by light selective absorption and scattering. Intuitively, enhancing underwater images can benefit high-level applications like underwater object detection. However, it is still unclear whether all object detectors
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Binocular Underwater Measurement With Multicolor Structured Light IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-12-04 Shuaishuai Li, Xiang Gao, Zexiao Xie
This article designs an underwater binocular measurement system combining binocular vision and multicolor structured light, for the problem of autonomous grasping by underwater robots. In our solution, multiple colored stripes of structured light are projected on the surface of the object to be measured at once without the scanning process and, thus, have the advantages of high measurement accuracy
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A Comprehensive Buried Shipwreck Detection Method Based on 3-D SBP Data IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-12-01 Shaobo Li, Yi Zhang, Jianhu Zhao, Yunlong Wu, Shaofeng Bian, Guojun Zhai
The detection of shipwrecks plays an important role in hydrographic surveying and underwater archaeology. However, traditional 2-D sub-bottom profiler (SBP) data cannot represent the 3-D shape of the buried shipwreck. An automatic shipwreck detection method based on 3-D SBP data is presented in this article. First, the key hull shape parameters are given and analyzed to describe the 3-D geometric characteristics
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Wave Height Forecasting Over Ocean of Things Based on Machine Learning Techniques: An Application for Ocean Renewable Energy Generation IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-30 Kamal Upreti, Sangeeta Arora, Anupam Kumar Sharma, Adesh Kumar Pandey, Kamal Kant Sharma, Mohit Dayal
With the evolution and integration of information and communication technologies, the marine environment is being converted into a smart ocean of things. The only way to monitor the marine environment is to access marine information through satellites, radar, etc. Recently, many researchers have focused their interest on generating power from renewable energy. Among all the available renewable resources
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High-Resolution Short Angle Weight Algorithm in Sonar Systems IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-20 Haoran Ji, Lei Wang, Cong Peng, Liang Chen, Shuhao Zhang, Qian Zhou
The Conventional Beamforming (CBF) Method has been widely used for underwater target detection. However, the performance and resolution of the CBF are insufficient in low signal-to-noise ratio (SNR) cases. To circumvent such a situation, this article proposes a new short angle weight (SAW) algorithm to improve the performance and resolution for target detection. Compared with the CBF, the proposed
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Automatic Geolocation and Measuring of Offshore Energy Infrastructure With Multimodal Satellite Data IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-17 Ping Ma, Malcolm Macdonald, Sally Rouse, Jinchang Ren
With the increasing trend of energy transition to low-carbon economies, the rate of offshore structure installation and removal will rapidly accelerate through offshore renewable energy development and oil and gas decommissioning. Knowledge of the location and size of offshore infrastructure is vital in the management of marine ecosystems and also for safe navigation at sea. The availability of multimodal
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Experimental and Numerical Investigation of the Hydroelastic Response of a Hinged Hexagon Enclosed Platform in Waves IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-16 Weiqin Liu, Shuo Chen, Ke Hu, Xiaoxuan Guo, Qibin Wang, Xueming Song, Zhengguo Liu, Ye Li
With the development of very large floating structures (VLFSs), a hexagon enclosed platform (HEP), which consists of six trapezoidal modules with a hinged connection, is recently proposed. Preliminary studies have shown its good performance for multipurpose ocean exploration applications, but the traditional rigid connector might not satisfy the requirements. To further enhance the design and performance
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Super Permutation Frequency-Shift-Keyed Underwater Acoustic Communication IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-16 Viktor Lidström
A method that defines the superset of $M$ ary permutation frequency-shift keying (SPFSK) alphabets as the symbol space is investigated as a possible robust data link for the underwater acoustic (UWA) channel. The alphabet is equivalent to on – off keying for ${M=1}$ . Polar coding and time/frequency guards are used for redundancy. The bit error probability of an SPFSK symbol is evaluated to construct
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CEWformer: A Transformer-Based Collaborative Network for Simultaneous Underwater Image Enhancement and Watermarking IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-09 Jun Wu, Ting Luo, Zhouyan He, Yang Song, Haiyong Xu, Li Li
Since the copyright of the enhanced underwater image should be protected, we propose a transformer-based collaborative network (CEWformer) for simultaneous underwater image enhancement and watermarking. In CEWformer, a channel self-attention transformer (CSAT) is deployed by mining channel correlations to enhance channels with severe color attenuation. To emphasize quality degradation and inconspicuous
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Oil Spill Timely Backtracking Oriented by Wind Field Correction With Self-Attention Temporal Convolutional Networks IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-11-09 Yongqing Li, Xinrong Lyu, Peng Ren
We investigate the problem of oil spill timely backtracking. Most existing methods for backtracking oil spills rely heavily on historical wind fields. However, during the crucial early stages of an oil spill accident, only inaccurate forecasted or observed wind fields are available as historical data, which do not guarantee reliable accuracy for backtracking the oil spills. On the other hand, reanalysis
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Seal-Inspired Underwater Glider With a Rigid-Flexible Composite Hull IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-10-23 Yuhong Liu, Huan Bai, Shihan Deng, Shuhe Liu, Shuxin Wang, Shiquan Lan, Xiaokang Li, Houcun Li, Zhijie Wang
It is difficult for traditional underwater gliders (UGs) equipped with rigid hulls to compensate for the buoyancy loss caused by seawater density variation and reduce the vibration noise. Inspired by the streamlined shape and soft body of seals, this article develops a bionic UG with appropriate buoyancy compensation and vibration and noise reduction. The seal-inspired underwater glider (SIUG) contains
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An Improved Experimental Framework of Amphibious Marine Vehicle Hull Hydrodynamics IEEE J. Ocean. Eng. (IF 4.1) Pub Date : 2023-10-17 James M. Shihua, Rhea P. Liem, Ye Li
With the increase of anthropogenic oceanic activities, a great number of innovative marine vehicles have been proposed and developed in the past few decades. Among these new vehicles, the amphibious marine vehicle is considered one of the most unique as it operates in air and water. This unique mode of operation necessitates simultaneous and coupled analyses of the aerodynamic and hydrodynamic performance