OOIR: Observatory of International Research

Papers

(The median citation count of IEEE Journal of Oceanic Engineering is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-09-01 to 2025-09-01.)

Article	Citations
2023 Index IEEE Journal of Oceanic Engineering Vol. 48	215
Editorial Farewell From Your Outgoing EiC	147
Robust Chinese Remainder Theorem–Based Synthetic Aperture Sonar Motion Estimation	106
DAPNet: Dual Attention Probabilistic Network for Underwater Image Enhancement	100
Table of Contents	96
JOE Call for Papers - Special Issue on Maritime Informatics and Robotics: Advances from the IEEE Symposium on Maritime Informatics & Robotics	88
Method for Remote Sensing Oil Spill Applications Over Thermal and Polarimetric Imagery	79
On the Exploitation of Dual-Polarimetric SAR Measurements to Observe the C33 Iceberg in Antarctica	59
ROV Localization Using Ballasted Umbilical Equipped With IMUs	53
Convolutional Neural Networks and Transformers-Based Techniques for Underwater Marine Debris Classification: A Comparative Study	49
Multifrequency Phased-Arrays With Dynamic Range Ratio Control for Coastal Monitoring	47
ADRC-Based Underwater Navigation Control and Parameter Tuning of an Amphibious Multirotor Vehicle	44
A Shared Control Framework With Constrained Optimization and Guiding Force Feedback for Teleoperation of Underwater Electric Manipulator	40
Laser Doppler Velocimetry for 3-D Seawater Velocity Measurement Using a Single Wavelength	39
Reinforcement Learning-Based Virtual Time Compressed Mirror for Underwater Acoustical Channel Equalization Based on Main Path to Side Path Ratio Criterion	38
Evaluation of UKF-Based Fusion Strategies for Autonomous Underwater Vehicles Multisensor Navigation	36
A Dynamic Ensemble Deep Randomized Neural Network Using Deep Autoregressive Features for Wave Height Forecasting With Missing Values	36
A Two-Stage Underwater Enhancement Network Based on Structure Decomposition and Characteristics of Underwater Imaging	35
Autonomous Underwater Environment Perceiving and Modeling: An Experimental Campaign With FeelHippo AUV for Forward Looking Sonar-Based Automatic Target Recognition and Data Association	34
Autonomous Ship Collision Avoidance in Restricted Waterways Considering Maritime Navigation Rules	33
Editorial Presenting Abstracts of Accepted/Published JOE Papers at MTS/IEEE OCEANS Conferences	32
A Physics-Based Inversion of Multibeam Sonar Data for Seafloor Characterization	32
Path Selection in Parallel Multihop UVLC Systems Over Turbulence Channels	31
A Deep Learning Model for Marine Mammal Call Classification	30
HoloOcean: A Full-Featured Marine Robotics Simulator for Perception and Autonomy	30

Object Modeling From Underwater Forward-Scan Sonar Imagery With Sea-Surface Multipath	30
Vector Quantized Underwater Image Enhancement With Transformers	29
An Efficient and Robust Underwater Image Compression Scheme Based on Autoencoder	29
Interference Cancellation for UWA Random Access Data Packet Transmission	28
MISU: Multi-Input Swin-UNet	28
Multitask Cooperative Formation Control of Autonomous Surface Vehicles With Interception of Moving Objects	26
Table of Contents	26
Multiobjective Risk-Aware Path Planning in Uncertain Transient Currents: An Ensemble-Based Stochastic Optimization Approach	25
Improved Adaptive High-Order Sliding Mode-Based Control for Trajectory Tracking of Autonomous Underwater Vehicles	25
Modal Analysis of Acoustic Energy Periodic Fluctuations Due to Internal Tides in the Yellow Sea	25
Super Permutation Frequency-Shift-Keyed Underwater Acoustic Communication	25
Structural Imaging of Acoustic Survey Using a Deep-Towed Sub-Bottom Profiler and Hydrophone Cable	24
Cross Evaluation of Waveform Modulation Schemes Using Postexperimental Field Data	24
A Ship Tracking Method in Inland Waters Based on Fusion of Video and AIS Data	23
Hybrid AC Shipboard Microgrid Time Delayed LFC and AVR Controllers Tuning Through Gazelle Optimization Algorithm and Real-Time HIL Implementation	23
Unsupervised Multiple Representation Disentanglement Framework for Improved Underwater Visual Perception	22
Parameter Estimation by Alternating Reconstruction and Sensation for Sonar System	22
Current Trends and Advances in Quantum Navigation for Maritime Applications: A Comprehensive Review	22
Underwater Image Enhancement With Reinforcement Learning	21
Experimental Evaluation of a Real-Time FPGA Platform for Multichannel Coherent Acoustic Communication	21
Signals-of-Opportunity-Based Hydrophone Array Shape and Orientation Estimation	21
Texture-Based Seafloor Characterization Using Gaussian Process Classification	20
Editorial Hello From Your New EiC	20
A High-Responsivity Subsurface Buoy System With a Fiber-Optic Acoustic Vector Sensor for Continuous Low-Frequency Acoustic Monitoring in the Deep Ocean: Development and Sea Trials	19
Design and Analysis of Large-Scale Contra-Rotating Offshore Vertical-Axis Turbines	19
Modeling and Analyzing Water Column Forward Scattering Effect on Airborne LiDAR Bathymetry	19
Pruned Distributed and Parallel Subarray Beamforming for 3-D Underwater Imaging With Fine-Grid Sparse Arrays	19
Single Receiver Underwater Localization of an Unsynchronized Periodic Acoustic Beacon Using Synthetic Baseline	19
Estimation of Frequency-Wavenumber Diagrams Using a Physics-Based Grid-Free Compressed Sensing Method	18
Finding and Tracking a Phytoplankton Patch by a Long-Range Autonomous Underwater Vehicle	18
Joint CFO, Gridless Channel Estimation and Data Detection for Underwater Acoustic OFDM Systems	17
Safe Maneuvering Near Offshore Installations: A New Algorithmic Tool	17
Underwater Surface Normal Reconstruction via Cross-Grained Photometric Stereo Transformer	17
Large-Scale Dense 3-D Mapping Using Submaps Derived From Orthogonal Imaging Sonars	17
Table of Contents	17
Self-Adversarial Generative Adversarial Network for Underwater Image Enhancement	17
Marine Hydrokinetic Farm Optimization for Coaxial Dual-Rotor Turbines	17
A Reinforcement Learning Paradigm of Configuring Visual Enhancement for Object Detection in Underwater Scenes	17
Enhancing Underwater Imagery via Latent Low-Rank Decomposition and Image Fusion	16
Laser-Acoustic Cross-Medium Communication (LACMC) System: Theoretical Channel Model and Experiments	16
Bathymetric Reconstruction From Sidescan Sonar With Deep Neural Networks	16
Table of Contents	16
Testing High Directional Resolution Sea-Spectrum Estimation Methods in View of the Needs of a National Monitoring System	16
Temporal Temperature Profile Prediction Using Graph Convolutional Networks and Inverted Echosounder Measurements	16
The Impact of the Spatial Variability of the Seafloor on Midfrequency Sound Propagation During the Target and Reverberation Experiment 2013	16
Low Computational Complexity RLS-Based Decision-Feedback Equalization in Underwater Acoustic Communications	16
Effects of Water Surface Waves on a Sound-Millimeter Wave-Based Cross-Medium Wireless Communication System	15
Contrastive Learning in NMPC Behavior Cloning for Generalized Trajectory Tracking of Marine Vehicles	14
Improved Calculation of the Second-Order Ocean Doppler Spectrum for Sea State Inversion	14
Spherical Harmonic Expansion Model for GNSS/Acoustic Precise Seafloor Positioning	14

Performance Analysis of Underwater Acoustic Communications in Barrow Strait	14
Free Surface Elevation Estimator as a Sensor for Wave-Powered Data Buoys	14
Coherence-Induced Bias Reduction in Synthetic Aperture Sonar Along-Track Micronavigation	14
An Improved YOLOv8-Based Shallow Sea Creatures Object Detection Method	14
Potential-Game-Driven Formation Control of AUVs: An Inverse-Reinforcement-Learning-Based Solution	14
Tracking Multiple Surface Vessels With an Autonomous Underwater Vehicle: Field Results	14
Experimental Demonstration of an Autonomous Distributed-Consensus Network for Underwater Passive-Acoustic Detection	13
Binocular Underwater Measurement With Multicolor Structured Light	13
NWSP: A Novel Indicator for Ocean–Land Interface Extraction Using Bathymetric LiDAR	13
Optimization Design Method of the Umbilical Cable Global Configuration Based on Representative Fatigue Conditions	13
Transfer Learning and Few-Shot Learning Based Deep Neural Network Models for Underwater Sonar Image Classification With a Few Samples	13
Semantic Segmentation in Underwater Ship Inspections: Benchmark and Data Set	13
A Dense Subframe-Based SLAM Framework With Side-Scan Sonar	13
In Situ Performance Prediction of a Coherent Acoustic Modem in a Reverberant Environment	12
Fast Detection of Small Targets in High-Resolution Maritime Radars by Feature Normalization and Fusion	12
Joint Equalization and Self-Interference Cancellation for Underwater Acoustic In-Band Full-Duplex Communication	12
Monitoring Tidal Currents and Macroturbulence in a High-Flow Tidal Channel Using a Kilometer-Scale Acoustic Travel-Time Instrument	12
Secondary Beam Attention Estimation Algorithm	12
Call for papers: Special Issue on IEEE MetroSea 2023	12
A CFAR Detection Approach for Identifying Gas Bubble Seeps With Multibeam Echo Sounders	12
Applying an Uncrewed Surface Vessel to Measure Under-Pier Bathymetry	11
Robust Wideband Beamspace Adaptive Beamforming for Mainlobe Jamming in Underwater Environment	11
Safety-Critical Trajectory Generation and Tracking Control of Autonomous Underwater Vehicles	11
Estimating Scattering Patch Area for a Direction Finding HF Radar	11
A Strategy for Sizing and Optimizing the Energy System on Long-Range AUVs	11
Prior-Based Underwater Enhanced Image Quality Assessment Network	11
Demonstration of Underwater Channel State Information Acquisition in Grand Passage, Nova Scotia	11
The Effects of Vertical Correlation Characteristics on Vertical Array Gain Performance in Deep Water	11
A Greedy Depth-Seeking Behavior for Energy-Efficient Transits by an Autonomous Underwater Vehicle	11
Modeling of the Electroacoustic Process of Incomplete Spark Discharge in Saline Water-Sparker Source	11
Adaptive Formation Motion Planning and Control of Autonomous Underwater Vehicles Using Deep Reinforcement Learning	10
Combined Texture Continuity and Correlation for Sidescan Sonar Heading Distortion	10
Guest Editorial: Introduction to the Special Issue on Underwater Communications and Networking 2021 (UComms21)	10
Occlusion Modeling for Coherent Echo Data Simulation: A Comparison Between Ray-Tracing and Convex-Hull Occlusion Methods	10
Benchmarking Online Object Trackers for Underwater Robot Position Locking Applications	10
A Hyperheuristic Algorithm Based on Evolutionary Strategy for Complex Mission Planning of AUVs in Marine Environment	10
Real-Time Sonar Image Simulation for Adaptive Template Matching in Automatic Target Recognition	10
Neural Shape-From-Shading for Survey-Scale Self-Consistent Bathymetry From Sidescan	10
Full-Dimensional Nonlinear Dynamic Analysis for Lift Operation of a DP Crane Vessel	10
Underwater 3D-Feature-Enhanced Acoustic Imaging	10
2022 List of Reviewers	10
Inversion for Parameters of Mud as a Porous Medium	10
In Situ Suction Filtration Sampler With Hundreds of Membranes for Deep-Sea Suspensions	10
HG2former: HSV-Gamma Guided Transformers for Efficient Underwater Image Enhancement	9
Seismo-Acoustic Sensing on the Beaufort Sea in the 2021 Sea Ice Dynamics Experiment (SIDEx)	9
Multi-USV System Antidisturbance Cooperative Searching Based on the Reinforcement Learning Method	9
Real-Time Flight Simulation of Hydrobatic AUVs Over the Full 0$^{\circ}$–360$^{\circ}$ Envelope	9
Analysis and Compensation of Acoustic Rolling Shutter Effect of Acoustic-Lens-Based Forward-Looking Sonar	9
Model-Guided Deep Learning for Line Segment Detection in Time–Frequency Spectrograms of an Ocean Waveguide	9
Simulating Marine Snow Images: Pipeline, Data Set, and Benchmark	9
Parameterized Dynamic Modeling and Spiral Motion Pattern Analysis for Underwater Gliders	9
Adaptive Zigzag Mapping of a Patchy Field by a Long-Range Autonomous Underwater Vehicle	9
Autonomous Tracking of Salinity-Intrusion Fronts by a Long-Range Autonomous Underwater Vehicle	9
Long-Term Evolution of Wave Loads Against Offshore Fixed Monopile Structures on the Irish Atlantic Coast (1900–2010)	9
Fairness-Driven Optimization for NOMA-UWOC Systems With Energy Harvesting Requirements	9
Table of Contents	9
Ocean Sound Speed Profile Measurement Using a Pulse–Echo Technique	9
Automatic Detection of Pipelines From Sub-bottom Profiler Sonar Images	8
Hydrodynamic Analysis of Payload Bay Berthing for Underwater Vehicles	8
Tightly Coupled, Graph-Based DVL/IMU Fusion and Decoupled Mapping for SLAM-Centric Maritime Infrastructure Inspection	8
Underwater Image Enhancement via Modeling White Degradation	8
Real Signal DHT-OFDM With Index Modulation for Underwater Acoustic Communication	8
Cyclostationarity of Communication Signals in Underwater Acoustic Channels	8
Multilabel Classification of Heterogeneous Underwater Soundscapes With Bayesian Deep Learning	8
Autosub Long Range 6000: A Multiple-Month Endurance AUV for Deep-Ocean Monitoring and Survey	8
A Ship Radiated Noise Recognition Method Applicable to Incomplete Training Data Sets	8
A Novel Frequency-Based Global-Scope Adaptive Mixer for Sea State Estimation	8
A Novel Adaptive Initial State Estimation Method for Underwater Bearings-Only Target Tracking	8
Guest Editorial: Introduction to the Special Issue on Advanced Machine Learning Methodologies for Underwater Image and Video Processing and Analysis	8
Adaptive Enhancement of an Active Sonar Classifier Using Mode-Connectivity-Based Fine-Tuning Under Data Set Shifts	7
Phase Space Representation of Sound Fields in Lake Kinneret	7
Underwater Object Detection Under Domain Shift	7
Forecasting Buoy Observations Using Physics-Informed Neural Networks	7
Minimum Time Sailing Boat Path Algorithm	7
Trajectory Tracking Control for Vector Propulsion Unmanned Surface Vehicle With Incomplete Underactuated Inputs	7
Direct-Adaptive Turbo Equalization Based on Interference Reconstruction for OTFS Underwater Acoustic Communication System	7
Multichannel Signal Detection in Time-Spreading Distortion Underwater Channels Using Vector and Scalar Sensors: Theory and Experiments	7
Assessment of Risks Induced by Countermining Unexploded Large-Charge Historical Ordnance in a Shallow Water Environment—Part I: Real Case Study	7
Performance Improvement of Turbid Underwater Wireless Optical Communication Link Using Ratiometric Signal Processing	7
Underwater Image Enhancement Method via Multi-Interval Subhistogram Perspective Equalization	7

Target Detection Using Underwater Acoustic Communication Links	7
Enhanced Dual-Comb Underwater Ranging via an Improved VMD Algorithm	7
Side-Scan Sonar Underwater Target Detection: Combining the Diffusion Model With an Improved YOLOv7 Model	7
Analysis of Research Trends and Technological Maturity of Biomimetic Underwater Communication	7
Joint Message-Passing-Based Bidirectional Channel Estimation and Equalization With Superimposed Training for Underwater Acoustic Communications	7
An Ultracompact Underwater Pulsed Digital Holographic Camera With Rapid Particle Image Extraction Suite	6
Passive Bearing Estimation Using a 2-D Acoustic Vector Sensor Mounted on a Hybrid Autonomous Underwater Vehicle	6
Hybrid Seabed Parameterization to Investigate Geoacoustic Gradients at the New England Mud Patch	6
Underactuated Autonomous Underwater Vehicle Time-Varying Formation Consensus Control With Multiple Actuator Constraints	6
Estimating the Motion Parameters of Sound Sources Using a Network of Compact Arrays	6
Is Underwater Image Enhancement All Object Detectors Need?	6
2024 Index IEEE Journal of Oceanic Engineering Vol. 49	6
Discrete Vortex Method-Based Fish-Like Locomotion Modeling	6
Virtual Maps for Autonomous Exploration of Cluttered Underwater Environments	6
Guest Editorial: Introduction to the Special Issue on the IEEE 2024 AUV Symposium	6
Experimental Study on Dynamic Characteristics and Vibration Mitigation Strategy of Jacket Offshore Wind Turbines Under Typical Normal Operating and Mechanical Fault Conditions	6
Development and Motion Mechanism of a Novel Underwater Exploration Robot for Stratum Drilling	6
Automatic Geolocation and Measuring of Offshore Energy Infrastructure With Multimodal Satellite Data	6
Riding Stress Wave: Underwater Communications Through Pipeline Networks	6
Data Rate Performance of Mobile Multiuser MIMO Underwater Acoustic Communication Systems	6
Robust and Flexible Maritime ISAR Tracking Algorithm for Multiple Maneuvering Extended Vessels in Heavy-Tailed Clutter Using Skewed Multiple Model MB-Sub-RMM-TBD Filter	6
Table of Contents	6
Bearing-Only-Based Cooperative Target Enclosing Control for Multiple Uncrewed Surface Vehicles With Unknown Dynamics and Sideslip	6
Optimal Path Planning of Autonomous Marine Vehicles in Stochastic Dynamic Ocean Flows Using a GPU-Accelerated Algorithm	6
An Autonomous Underwater Glider With Improved Transport Efficiency	6
Design and Development of a Low-Cost Floater for Sustainable Fishing	6
Angular MIMO for Underwater Wireless Optical Communications: Link Modeling and Tracking	6
Unsupervised Domain Adaptation for Source Localization Using Ships of Opportunity With a Deep Vertical Line Array	6
New Insight Into Internal Waves for Maritime Applications: A Novel Optical Method With Ocean Experimental Results	6
A Soft Robotic Gripper With Neutrally Buoyant Jamming Pads for Gentle Yet Secure Grasping of Underwater Objects	6
Experimental Study on Underwater Cylindrical Acoustic Wave Generated by High-Voltage Pulse Excited Cable	6
Spatial Coherence of Speckle for Repeat-Pass Synthetic Aperture Sonar Micronavigation	5
Multiheterogeneous AUV Swarm Technology Exemplified by the MAUS Project: Cooperation, Mission Planning and Hybrid Communication	5
Follow-the-Leader Guidance, Navigation, and Control of Surface Vessels: Design and Experiments	5
Vector-Approximate-Message-Passing-Based Channel Estimation for MIMO-OFDM Underwater Acoustic Communications	5
Reinforcement Learning Based Underwater Wireless Optical Communication Alignment for Autonomous Underwater Vehicles	5
Turbid Underwater Image Enhancement Based on Parameter-Tuned Stochastic Resonance	5
Channel–Spatial Aligned Global Knowledge Distillation for Underwater Acoustic Target Recognition	5
NFFLS: Rapid and Accurate Underwater 3-D Reconstruction With Neural Fields for Forward-Looking Sonar	5
Table of Contents	5
3-D Adaptive AUV Sampling for Classification of Water Masses	5
Adaptive Modulation and Coding With Feedback Scheduling for an Underwater Acoustic Link	5
Semi-Supervised Underwater Image Enhancement Network Boosted by Depth Map Consistency	5
Validation of Targets in Sonar Imagery Using Multispectral Analysis	5
Information-Driven Path Planning for Hybrid Aerial Underwater Vehicles	5
Hilbert–Huang Transform With Intelligent Noise Reduction for Passive SONAR Signal Processing	4
Spatial Power Spectrum Estimation Under Strong Interferences Using Beam-Space Fast Nonnegative Sparse Bayesian Learning	4
Adaptive Ocean Gradient Tracking Using an Autonomous Underwater Vehicle With a Boundless Model	4
Blurriness-Guided Underwater Salient Object Detection and Data Augmentation	4
Underwater Scene Enhancement via Adaptive Color Analysis and Multispace Fusion	4
CEUSOD: Channel-Enhanced, Efficient, and Effective Network for Underwater Salient Object Detection	4
PBiGAMP-Based Joint Channel Estimation and Data Detection Under Nonuniform Doppler Shifts	4
Particle Velocity Underwater Data Communication: Physics, Channels, System and Experiments	4
Experimental Study on the Acoustic Radiation Contribution of an Underwater Shell Based on the Reciprocity Principle	4
Correcting Ship-Track Orthogonal Bathymetric Undulations Induced by Lever Arm Errors in Multibeam Echosounder Bathymetric Data	4
Excellence in Review 2021	4
Pose Estimation From Camera Images for Underwater Inspection	4
Local Polynomial Interpolation Method Optimization in the Process of Digital Terrain Model Creation Based on Data Collected From a Multibeam Echosounder	4
Oil Spill Timely Backtracking Oriented by Wind Field Correction With Self-Attention Temporal Convolutional Networks	4
Analysis and Suppression of Range-Domain Periodic Interference in High-Frequency FMICW Radar	4
Physics-Informed Neural Networks for Modeling Ocean Dynamics and Parameter Estimation: Leveraging Ocean Reanalysis Data	4
Experimental Design and Analysis of the Evolution of Unidirectional Wind Wave Interaction	4
Evaluation of Polar-Coded Noncoherent Acoustic Underwater Communication	4
Delay-Doppler Domain Turbo Equalization for Single-Carrier Underwater Acoustic Communications	4
Characterization of the Terra Nova Bay Polynya Using Dual-Polarimetric C-Band SAR Measurements	4
Histoformer: Histogram-Based Transformer for Efficient Underwater Image Enhancement	3
Light Beacon-Aided AUV Electromagnetic Localization for Landing on a Planar Docking Station	3
Active Underwater Target Detection Using a Shallow Neural Network With Spectrogram-Based Temporal Variation Features	3
Relaxed Control Barrier Function Based Control for Closest Approach by Underactuated USVs	3
Spatial Interpolation of Wave Fields Based on Limited Spatial Measurements	3
Guidance and Control Based on Adaptive Sliding Mode Strategy for a USV Subject to Uncertainties	3
System Architecture and Communication Infrastructure for the RoboVaaS Project	3
Multilabel Recognition Method for Ship-Radiated Noise Signals Based on Multidomain Information Fusion With Deep Equilibrium Models	3
Machine Learning Transmission Loss Predictions in Acoustic Field Experiments	3
Adaptive Hand Position for Underactuated Underwater Vehicles	3
Dynamic Analysis of the Cable-Releasing Phase for the Underwater Glider on Mooring Mission	3
Development of a Buoy-Borne Underwater Imaging System for In Situ Mesoplankton Monitoring of Coastal Waters	3
Cross-Medium Communication Combining Acoustic Wave and Millimeter Wave: Theoretical Channel Model and Experiments	3
Range-Dependent Inversion for Seabed Parameters Using Vector Acoustic Measurements of Underwater Ship Noise	3
Table of Contents	3
Modified Block A^* Path-Planning Method for Hybrid-Driven Underwater Gliders	3
Underwater Image Enhancement Using Illuminant Intensity Compensation With Foreground Edge Map Rectification	3
Demonstration of Spiral Wavefront Navigation on an Unmanned Underwater Vehicle	3
Beam Converging and Slope Search Processing by Striation-Correlation-Based Beamforming in Shallow Water	3
A Numerical Model for Stability and Dynamic Analyses of a Floating Dock During Operations	3
Combining DVL-INS and Laser-Based Loop Closures in a Batch Estimation Framework for Underwater Positioning	3
SCN: A Novel Underwater Images Enhancement Method Based on Single Channel Network Model	3
SISC: A Feature Interaction-Based Metric for Underwater Image Quality Assessment	3
Transdimensional Geoacoustic Inversion Using Prior Information on Range-Dependent Seabed Layering	3
Nonlinear Low-Frequency Response of a Floating Offshore Wind Turbine Integrated With a Steel Fish Farming Cage	3
Underwater Image Enhancement by Attenuated Color Channel Correction and Detail Preserved Contrast Enhancement	3
A Linear Near-Field Interference Cancellation Method Based on Deconvolved Conventional Beamformer Using Fresnel Approximation	3
Environmental-Parameter-Importance-Informed Robust Matched Field Processing in Uncertain Shallow Water	3
A Vignetting-Correction-Based Underwater Image Enhancement Method for AUV With Artificial Light	3
An Integrated Piston-Variable Digital-Controlled Hydraulic Cylinder for Pendulum Wave Energy Converter	3