
Design and Development of a Low-Cost Floater for Sustainable Fishing
A Database of Underwater Radiated Noise from Small Vessels in the Coastal Area
Active acoustics to monitor fish stock: a case study in Lake Malawi
Aquaculture defects recognition via multi-scale semantic segmentation
Adaptive and Robust Direct Data-Driven Controller for Surface Vessel Navigation
Comparing Different YOLO Versions for Boat Detection and Classification in Real Datasets
SeaTecHub: Croatia-Cyprus Excellence Hub on Eco-Innovative Technologies for Healthy and Productive Seas
Remote-Access Marine Robotics Infrastructure and Experiments at LABUST
Developing Human-in-the-Loop Digital Twin for Offshore Operations with Working Class Remotely Operated Underwater Vehicle
The proceedings of IEEE OCEANS 2024, Singapore
Diver-robot communication dataset for underwater hand gesture recognition
Analysis of LiDAR-Camera Fusion for Marine Situational Awareness with Emphasis on Cluster Selection in Camera Frustum
Vessel registration number detection and recognition system
Autonomous Visual Fish Pen Inspections for Estimating the State of Biofouling Buildup Using ROV - Extended Abstract
Heterogeneous marine robotic system for environmental monitoring missions
MASK - increasing sea knowledge awareness among high school students using marine robots
Cooperative marine litter detection and environmental monitoring using heterogeneous robotic agents
Navigation, Guidance and Control of a catamaran robust to external disturbances
The MASK project – using marine robotics to increase sea knowledge awareness among high school students
A Search Strategy and Vessel Detection in Maritime Environment Using Fixed-Wing UAVs
Navigation, Guidance and Control of a catamaran robust to external disturbances
Autonomous Visual Fish Pen Inspections for Estimating the State of Biofouling Buildup Using ROV
Increasing the Underwater Sensor Networks potential in Montenegro - an overview of the Horizon Europe MONUSEN project
Preliminary study on the impact of acoustic emissions on fish
A hyper-heuristic approach to achieving long-term autonomy in a heterogeneous swarm of marine robots
Learning globally linear predictors using deep Koopman embeddings with application to marine vehicles
Navigation, Guidance and Control of a catamaran robust to external disturbances
Autonomous Visual Fish Pen Inspections for Estimating the State of Biofouling Buildup Using ROV
Complete coverage of large seabed areas using sonar data-based path planning for an autonomous marine vehicle
Training inspection class mini-ROV operators
Diver-Robot Communication Glove Using Sensor-Based Gesture Recognition
MARUS - A Marine Robotics Simulator
LIDAR-based USV close approach to vessels for manipulation purposes
Landing Platform for Autonomous Inspection Missions in Mariculture Using an ASV and a UAV
Operating drones at sea - maritime law implications
Maximum likelihood based underwater localization algorithm aided with depth measurements
Diver‐Robot Communication Using Wearable Sensing: Remote Pool Experiments
Automatic Control - laboratory exercises
Acoustical Underwater Localization of a Remotely Operated Vehicle in Mariculture
Heterogeneous Autonomous Robotic System in Viticulture and Mariculture: Vehicles Development and Systems Integration
Biofouling Estimation in Mariculture
A visual servoing scheme for autonomous aquaculture net pens inspection using ROV
Tether Management System for Autonomous Inspection Missions in Mariculture Using an ASV and an ROV
Biofouling Estimation in Mariculture
Aided Diver Navigation Using Autonomous Vehicles in Simulated Underwater Environment
Low-Power Level-Crossing Rate-Based Diver Detection System
Creating a remote access-ready infrastructure for the future
Developing the concept of multifunctional smart buoys
Cloud-based mission control of USV fleet: Architecture, implementation and experiments
Towards a Heterogeneous Robotic System for Autonomous Inspection in Mariculture
Underwater ROV software for fish cage inspection
Breaking the Surface - lessons learned from over a decade of interdisciplinary workshops
Addressing the sustainability of the Adriatic sea using marine robotics
Advancing the EU Marine Robotics Research Infrastructure Network: the EU Marine Robots project
InnovaMare project - Strengthening the innovation ecosystem in underwater robotics and sensors in the Adriatic
Heterogeneous autonomous robotic system in viticulture and mariculture – project overview
Underwater ROV Software for Fish Cage Inspection
IMPACT: a strategic partnership for sustainable development in marine systems and robotics
Saliency and Anomaly: Transition of Concepts from Natural Images to Side-Scan Sonar Images
Development of Visual Servoing-Based Autonomous Docking Capabilities in a Heterogeneous Swarm of Marine Robots
A Novel Paradigm for Underwater Monitoring Using Mobile Sensor Networks
Using Autonomous Underwater Vehicles for Diver Tracking and Navigation Aiding
Marine Robots Mapping the Present and the Past: Unraveling the Secrets of the Deep
Underwater Acoustic Source Seeking Using Time- Difference-of-Arrival Measurements
Vehicle-in-the-loop framework for testing long-term autonomy in a heterogeneous marine robot swarm
Autonomous Vehicles Mapping Plitvice Lakes National Park, Croatia
Inspection of Submerged Structures
The Marine Robotics Research Infrastructure Network (EUMarine Robots): An Overview
Side-Scan Sonar Data-Driven Coverage Path Planning: A Comparison of Approaches
Towards Advancing Diver-Robot Interaction Capabilities
New technologies for improving the diver experience in underwater cultural sites
Opto-acoustic 3D Reconstruction and Virtual Diving on the Peristera Shipwreck
Sensitivity Analysis for TDoA-Based Localisation in Underwater Sensor Networks
Control of autonomous surface marine vessels for underwater vehicle localization using single range acoustic measurements
A Heterogeneous Robotic Swarm for Long-Term Monitoring of Marine Environments
Convolutional Neural Network Architectures for Sonar-Based Diver Detection and Tracking
Proceedings of the 11th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles CAMS 2018
Autonomous docking and energy sharing between two types of robotic agents
Navigational Challenges in Diver-AUV interaction for underwater mapping and intervention missions
H2020 Twinning projekt EXCELLABUST - Excelling LABUST in marine robotics
Autonomous Surface Vehicles as Positioning and Communications Satellites for the Marine Operational Environment — Step toward Internet of Underwater Things
Navigational Challenges in Diver-AUV interaction for underwater mapping and intervention missions
Towards Enhancing the Navigational Accuracy of UUVs Through Collaboration of Multiple Heterogeneous Marine Vehicles
Information Gain-Guided Online Coverage Path Planning for Side-Scan Sonar Survey Missions
subCULTron - Cultural Development as a Tool in Underwater Robotics
Application for remote control of a surface vessel
Heuristics pool for hyper-heuristic selection during task allocation in a heterogeneous swarm of marine robots
A side-scan sonar data-driven coverage planning and tracking framework
Challenges and future trends in marine robotics
Acoustic message transmission control
Underwater cable detection using a line laser
Development of a graphical user interface for controlling the formation of autonomous unmanned surface platforms
robotics@fer.hr
Cooperative and not-so-cooperative marine robots
On-line horizon detection and adaptive determination of region of interest within an image for the purpose of cooperative control of marine robots
Cooperative and not-so-cooperative marine robots
Underwater robotics for the recording of shallow water archaeological sites
Cooperative robotics in marine monitoring and exploration
Integration of the Laboratory System for Vessel Positioning
Coordinated Navigation of Surface and Underwater Marine Robotic Vehicles for Ocean Sampling and Environmental Monitoring
Guidance and control of autonomous underwater agents with acoustically aided navigation
Mash Filter Automation in the Beer Brewing Process
Real-time model predictive line following control for underactuated marine vehicles
CADDY project, year 3: The final validation trials
Development of model predictive guidance for underactuated marine vehicles: From simulations to experiments
FET projects subCULTron and aPad
Artificial Mussels’ Depth Control Abstract
Trilateration by Using Acoustic Modems
Stereo-vision based diver pose estimation using LSTM recurrent neural networks for AUV navigation guidance
CADDY: Cognitive Autonomous Diving Buddy
Teleoperated trajectory tracking of remotely operated vehicles using spatial auditory interface
CADDY Project, Year 2: The First Validation Trials
Mobile beacon control algorithm that ensures observability in single range navigation
"Humans and robots - buddies in the underwater"
CADDY Year 2: What we learned from first validation trials
Robot - diving buddy
robotics@FER.hr
Anomaly Detection in Diver States
Model predictive control of an autonomous vessel
Experimental Setup for Measuring the Height of Objects Jumping out of the Water
What are underwater robots used for?
Testing and extension of the simulator for multiagent heterogeneous robotic systems
Mobile application for auditory spatial navigation
Development of a graphical user interface for a work-class remotely operated underwater vehicle
Implementation of tubine control on a NI cRIO platform
Implementation of a power plant model on a NI PXI platform
Determining Fish Size from an Image
Image Processing on an Embedded System for the Purpose of Analyzing Water Turbitdity
Integration of Benthos underwater vehicle and positioning system
Application of an ASV for coastal underwater archaeology
Formation control of autonomous unmanned marine platforms
Mechanical design of an autonomous marine robotic system for interaction with divers
Full–scale identification by use of self– oscillations for overactuated marine surface vehicles
Underwater object tracking using sonar and USBL measurements
CADDY - Cognitive Autonomous Diving Buddy: Two Years of Underwater Human-Robot Interaction
Application of heterogeneous robotic system for oil spill scenario
State and perspective of underwater robotics - role of Laboratory for underwater systems and technologies
Recognition of diver pose using body-network of inertial sensors
Cooperative Surface/Underwater Navigation for AUV Path following missions
Hand gesture recognition from multibeam sonar imagery
Cognitive robotics at the Laboratory for Underwater Systems and Technologies, UNIZG-FER
Energy-efficient environmentally adaptive consensus-based formation control with collision avoidance for multi-vehicle systems
An ASV (Autonomous Surface Vehicle) for Archaeology: The Pladypos at Caesarea Maritima, Israel
FP7 CADDY project - "Cognitive Autonomous Diving Buddy"
Trust Consensus Protocol for Heterogeneous Underwater Robotic Systems
Diver Tracking Using Path Stabilization - the Virtual Diver Experimental Results
Human–Robot Interaction Underwater: Communication and Safety Requirements
"Breaking the Surface" - international interdisciplinary field-training for experts, end-users and students
Underwater Robotics ready for Oil Spills
Modelling of an buoyancy-based aquatic jumping system
Camera control system housing for an autonomous underwater vehicle
Interface for diver interaction with an autonomous underwater vehicle
Modelling and stabilization of a double inverted pendulum
Guidance of a small underwater vehicle from Matlab/Simulink by using ROS
Influece of delay on the virtual target algorithm
Model predictive control of a marine platform
Planar guidance of a remotely operated vehicle by using sound from multiple virtual sources that represent goal and obstacles
Estimating diver orientation from video using body markers
AUV based mobile fluorometers: system for underwater oil-spill detection and quantification
AUV for Diver Assistance and Safety - Design and Implementation
Tracking Divers : An Autonomous Marine Surface Vehicle to Increase Diver Safety
DiverNet - a Network of Inertial Sensors for Real Time Diver Visualization
Heterogeneous robotic system for underwater oil spill survey
An ASV for Coastal Underwater Archaeology: the Pladypos survey of Caesarea Maritima, Israel
Validation trials within FP7 CADDY project
Navigation, guidance and control of an overactuated marine surface vehicle
Loop-closure detection in SLAM based on underwater visual data
Sonar image processing for the purpose of diver hand detection
Development of an underwater system with variable buoyancy
Optimal and flexible thrust allocation for a holonomic surface vehicle
CADDY Project, Year 1: Overview of Technological Developments and Cooperative Behaviours
Overview of the FP7 project "CADDY - Cognitive Autonomous Diving Buddy"
FP7 CADDY project - "Cognitive Autonomous Diving Buddy"
FP7 CADDY project - "Cognitive Autonomous Diving Buddy"
Visual Diver Detection using Multi-Descriptor Nearest-Class-Mean Random Forests in the Context of Underwater Human Robot Interaction (HRI)
Range–only Navigation – Maximizing System Observability by Using Extremum Seeking
Postcards from the Pladypos: Field-Testing the First Generation of Cognitive Robots for Underwater Archaeology
Automatic Control - Solved Problems (ver 3)
subSULTron: Submarine cultures perform long- term robotic exploration of unconventional environmental niches
Autonomous surface platform for diver tracking and navigation
Auditory Interface for Teleoperation - Path Following Experimental Results
Return path planner for an autonomous platform using a known occupancy map
Analysis of system stability with human in the loop
Research in Marine Robotics at UNIZG-FER
CADDY - Robots Assisting Divers
FP7-ICT project CADDY - Cognitive Autonomous Diving Buddy
Design of electric wheelchair and its coupling to an electric vehicle to increase the autonomy of people with disabilities
Range-only underwater navigation
Autonomization of a small-scale ROV
Autonomous surface marine platform for diver tracking and navigation
The Robot Operating System (ROS) in Simulation, Control and Navigation of Marine Vehicles
Simulation of underwater vehicles in Gazebo+ROS simulator
Cooperative control of heterogeneous robotic systems
Hand recognition in sonar image
CADDY Project Presentation
Analysis of continuous and discrete control algorithms for vessels
Parameters identification of the human model behavior transfer function using visual and auditory external stimulus
ROS application for controller tuning
Interpretation of diver symbols in environments with disturbances
Control of a tanker model
Interpretation of divers' symbolic language by using hidden Markov models
Monitoring of seagrass by lightweight AUV: A Posidonia oceanica case study surrounding Murter island of Croatia
Dynamic positioning of a diver tracking surface platform
Auditory display as human machine interface for ROV guidance
Development of a dive computer
Unmanned marsupial sea-air system for object recovery
Activities of laboratory for underwater systems and technologies - an overview
CADDY - Cognitive Autonomous Diving Buddy
Nonlinear Control Systems - Laboratory Assignments
Interpretation of divers symbolic language by using hidden Markov models
Android application for diving assistance
Wireless transfer of depth sensor measurements
Diver kinematic model
Fish counting from video imagery
Fish cage structure recognition from video imagery
Android application for diver mission planning
Implementation of navigation algorithms on Arduino board
Recognition of fingers from video imagery
Implementation of navigation algorithms on PIC24 microcontroller
Diver air bubble recognition from video imagery
Software module for control and diagnostics of thruster control hardware
Guidance and control of an overactuated autonomous surface platform for diver tracking
The underwater acoustic localization system
GSM module for increasing the safety of autonomous vessels
Autonomous Marine Robots Assisting Divers
Nonlinear Control Systems - Solved Problems
Adaptive and robust control - Project assignment
Mathematical modeling of marine vessels - handouts
Feedback linearization - Lecture notes
Optimization of the microprocessor code for navigation
Development of threedimensional graphical models of testing sites
Wireless network of inertial sensors on a diving suit
Maritime Robotics: New Capacities - New Behaviors
Comparative assessment of human machine interfaces for ROV guidance with different levels of secondary visual workload
Integration of Arduino board with ROS
Implementation of navigation algorithms on dsPIC microcontroller
System identification and control using a microcontroller
Quick Identification and Dynamic Positioning Controller Design for a Small–Scale Ship Model
Automatic Control - Solved Problems
Motion estimation from a mutlibeam sonar
Wireless transfer of inertial measurement unit data
Automatic control of SeaMor ROV
Control software for BubbleBee II ROV
Laser scanner for 3D object reconstruction
Control software for a remotely operated ship
Inertial measurement unit calibration
Distributed Frameworks in Control and Navigation of Small Underwater Vehicles
CURE - Developing Croatian Underwater Robotics Reserach Potential
A Measure of Quality of Control for 2D AUV Formations
Communication with an autonomous marine platform via a mobile phone
Fusing Hydroacoustic Absolute Position Fixes with AUV On-Board Dead Reckoning
Safety system for maximum depth
Simplified diver body kinematic model
ROV control using the Kinect sensor
Mission control based on Petri nets
ROV control via internet
Virtual Target Algorithm in Cooperative Control of Marine Vessels
Sea bed following controller
Testing and technical characteristics of a small overactuated marine platform
Identification of SeaMor ROV
Cooperative control of marine vessels
Motion estimation from an onboard ROV camera
State estimator for an autonomous marine platform
Fast In-Field Identification of Unmanned Marine Vehicles
Formation Guidance of AUVs Using Decentralized Control Functions
The Overview of EU Funded Research Projects in the Field of Marine Robotics
Sonar Tracking of a Small UUV
Cooperation of Autonomous Marine Vehicles for MCM Purposes
Implementation of line-following algorithms on IVER AUV
System for determining the bearing of the underwater sound source
Interprocess communication for the autonomous kayak
Electric board for determining the source of sound under water
Hydroacoustic communication by the use of LinkQuest modems
Sonar Aided Navigation and Control of Small UUVs
Generating morphological characteristics of an underwater object from the side scan sonar image
Autonomous underwater vehicle Bubblebee II
Manoeuvring characteristics of vessels - lecture notes
Multibeam Sonar-Based Navigation of Small UUVs for MCM Purposes
Sensor integration for the autonomous kayak
Mathematical modelling of IVER AUV
Guidance of a Small-Scale Overactuated Marine Platform – Experimental results
Connecting the laboratory platform to the virtual world
Use of Self-Oscillations in Guidance and Control of Marine Vessels
Interface and calibration for an optical biological sensor
Fault diagnosis in control systems
Use of hydrophones for pinger localization
Identification of the laboratory marine platform model
Integration of the navigation module in the laboratory platform for dynamic positioning
Line following for a dynamic positioning laboratory platform
Guidance of Laboratory Marine Platforms
Geometric Primitives-Based AUV Path Planning In Cluttered Waterspaces
Laboratory Platforms for Dynamic Positioning – Modeling and Identification
Research Activities in the Laboratory for Underwater Systems and Technologies
Developing the Croatian Underwater Robotics Research Potential
Decentralized Control Functions In Trajectory Guidance Of A Non-Holonomic AUV
Waterborne unmanned technology of LabUST and collaborators
Revitalization of the AutoMarine module
An improved version of a laboratory marine platform
Praćenje 3D pravca za bespilotne ronilice
Automatic control - lectures
The Virtual Potential Field Method As A Tool For Formation Guidance of AUV-s
A MOOS-Based Online Trajectory Re-planning System For AUVs
MOOS-IvP In Application To Guidance of Autonomously Operating Marine Vehicles
Identification of Unmanned Underwater Vehicles by Self-Oscillation Method
Photo-sensor for Underwater Research
PRESENTATION OF THE RESULTS AND EQUIPMENT USED DURING THE INTERNATIONAL INTERDISCIPLINARY WORKSHOP „BREAKING THE SURFACE 2009“
Identification of Underwater Vehicles for the Purpose of Autopilot Tuning
Marine Robotics
Video surveillance system with internet access
Improvement of VideoRay Automarine Module
Distance Keeping for Underwater Vehicles - Tuning Kalman Filters Using Self-Oscillations
Methods for identifying mathematical models of vessels
Path and Trajectory Planning for Autonomous Underwater Vehicles
Tuning Marine Vehicles’ Guidance Controllers through Self-Oscillation Experiments
Marine Vehicles' Line Following Controller Tuning through Self-Oscillation Experiments
Heuristic Parameter Tuning Procedures for a Virtual Potential Based AUV Trajectory Planner
The Introduction of a Laser-based Module for Maintaining a Constant Distance from a Surface
Effects of Rotors on UUV Trajectory Planning Via the Virtual Potentials Method
User Interface for Underwater Vehicle Mission Planning
Identification of the mathematic model of the dynamics of an unmanned underwater vehicle
Application of the visual feedback principle to automated distance-keeping of an unmanned underwater vehicle from a flat obstacle
Radio control of marine vessels
The integration of an inertial measurement unit into the unmanned underwater vehicle VideoRay Pro II
Self-oscillation Based Identification and Heading Control for Unmanned Surface Vehicles
Synthesis of Linear Control Systems - Laboratory Assignments
Heading Control Design Based on Self-Oscillation Identification Method Applied to Charlie USV
The embedded diagnostic system of the autonomous hardware module of an unmanned underwater vehicle
Exciting New Feature Upgrades for PC Pilot
Autonomous Underwater Vehicle Simulator in LabVIEW
Automated distance-keeping of an unmanned underwater vehicle from a flat surface using a laser rangefinder
Basic functional programming for a PIC microcontroller-based central guidance system of an autonomous underwater vehicle
Experiences with application of small unmanned underwater vehicles
Control of UUVs Based upon Mathematical Models Obtained from Self-Oscillations Experiments
Marine biological research with the help of micro remote operating vehicle (ROV)
Automatic distance-keeping of an underwater vehicle from a sonar-sensed object
Identification of Coupled Mathematical Models for Underwater Vehicles
Autonomization of the remotely operated vehicle VideoRay ProII
ROV Autonomization - Yaw Identification and Automarine Module Architecture
Transfer Function Identification by Using Self- Oscillations
AUV Identification by Use of Self-Oscillations
Kinematic Simulative Analysis of Virtual Potential Field Method for AUV Trajectory Planning
A Kinematic Virtual Potentials Trajectory Planner For AUV-s
AUV Formations Achieved By Virtual Potentials Trajectory Planning In A Simulated Environment
Activities of the Laboratory for underwater systems and technologies at the Department of control and computer engineering, Faculty of electrical engineering and computing
Unmanned underwater vehicles - identification and control
Activities of the Laboratory for underwater systems and technologies (LabUST)
Adaptive autopilot for unmanned underwater vehicles
Application of quantitative feedback theory (QFT) for the design of a robust autopilot for sea vehicles
Virtual reality in LabVIEW for ROV VideoRay ProII
Simulator for VideoRAy Pro II unmanned underwater vehicle
Autotuning Autopilots for Micro-ROVs
Virtual reality for ships in the Matlab / Simulink programming package
Sonar signal processing for the purpose of unmanned underwater vehicle localization
Croatian/Adriatic Experiences and Future Possibilities with VideoRay
Developments in Auto Piloting ; Research and Development Based on VideoRay Products
Extension of VideoRay's PC Pilot programme platoform with a heading autopilot module
The graphical user interface for the design of controllers using the Solodovnikov method
Fuzzy autopilots for VideoRay Pro II unmanned underwater vehicle
Design of a coordinated control system for marine vehicles
Fault tolerant guidance and control of an autonomous unmanned underwater vehicle
Application of LabVIEW programme package on VideoRay Pro II unmanned underwater vehicle
Fault detection and localization on underwater vehicle propulsion system using principal component analysis
VideoRay AutoPilot – Making It Easier For The Operator
Teaching
University undergraduate
- Automatic Control (Lecturer in charge)
- Automatic Control (Lecturer in charge)
- BSc Thesis (Lecturers)
- BSc Thesis (Lecturers)
- BSc Thesis (Lecturers)
- Final BSc Project (Lecturers)
- Final BSc Thesis (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Project C (Lecturers)
- Project E (Lecturers)
- Software Design Project (Lecturers)
- Software Design Project (Lecturers)
- Software Design Project (Lecturers)
University graduate
- Marine Robotics (Lecturer in charge)
- Marine Robotics (Lecturer in charge)
- Nonlinear Control Systems (Lecturer in charge)
- Graduation Thesis (Lecturers)
- Graduation Thesis (Lecturers)
- Graduation Thesis (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Project (Lecturers)
- Seminar 1 (Lecturers)
- Seminar 2 (Lecturers)
- Laboratory of Control Engineering and Automation 2 (Laboratory exercises)
Postgraduate doctoral study programme
- Marine systems and technologies - Selected topics (Lecturer in charge)
Competences
-
Control systems
Automatic control Control design Control engineering Digital control Fault tolerant control Linear feedback control systems Nonlinear control systems PD control PI control Robot control -
Oceanic engineering and marine technology
Marine navigation Marine technology Marine equipment Marine transportation Marine vehicles Underwater communication Underwater technology Underwater communication -
Robotics and automation
Autonomous robots Autonomous vehicles Unmanned autonomous vehicles Multi-robot systems Robots Aquatic robots Autonomous robots Cognitive robotics Intelligent robots Mobile robots Robot control Robot motion Robot kinematics -
Systems engineering and theory
System analysis and design Control system analysis -
Communications technology
Underwater communication -
Computational and artificial intelligence
Autonomous robots Autonomous systems -
Computers and information processing
Control engineering computing -
Intelligent transportation systems
Autonomous vehicles Unmanned autonomous vehicles Unmanned underwater vehicles Marine navigation -
Reliability
Fault tolerant control -
Systems, man, and cybernetics
Control theory Linear feedback control systems Human-robot interaction -
Vehicular and wireless technologies
Marine navigation Autonomous vehicles -
Science – general
Underwater acoustics