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1. Full Text Quadrotor Attitude Dynamics Identification Based on Nonlinear Autoregressive Neural Network with Exogenous Inputs
by Avdeev, Alexander and Assaleh, Khaled and Jaradat, Mohammad A
Applied artificial intelligence, ISSN 0883-9514, 03/2021, Volume 35, Issue 4, pp. 265 - 289
Neural networks | Transfer functions | Attitudes | System identification | Rotary wing aircraft | Artificial intelligence | Continuity (mathematics)
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2. Full Text A Single-Loop MIMO Trajectory Tracking Controller for Autonomous Quadrotors: The Control Point Concept
by Bae, Han Woong and Fahimi, Farbod
Robotica, ISSN 0263-5747, 03/2021, Volume 39, Issue 3, pp. 438 - 451
Rolling motion | Robust control | Controllers | MIMO (control systems) | Trajectory control | Pitch (inclination) | Rotary wing aircraft | Tracking control | Sliding mode control | Yaw
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3. SIKORSKY-BOEING UNVEILS DEFIANT X FOR FLRAA
by PAT HOST
Jane's Defence Weekly, ISSN 2399-8334, 02/2021, p. 18
Helicopters | Military aircraft | Rotary wing aircraft
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4. Full Text A parallel, object-oriented framework for unsteady free-wake analysis of multi-rotor/wing systems
by Joseph, Cibin and Mohan, Ranjith
Computers & fluids, ISSN 0045-7930, 01/2021, Volume 215, p. 1
Free wake analysis | Distributed propulsion | Lattice skew parameter | Unsteady vortex lattice method | Roofline analysis | Analysis | Aerospace engineering | Solvers | Aerodynamics | Workstations | Rotary wing aircraft | Many body problem | Object oriented
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5. Full Text Aerodynamic-Parameter Identification and Attitude Control of Quad-Rotor Model with CIFER and Adaptive LADRC
by Yang, Sen and Xi, Leiping and Hao, Jiaxing and Wang, Wenjie
Chinese journal of mechanical engineering, ISSN 1000-9345, 01/2021, Volume 34, Issue 1, pp. 1 - 10
Engineering | Technology | Engineering, Mechanical | Science & Technology | Controllers | Parameter estimation | Attitude control | Control methods | Control systems design | Identification methods | Rotors | Interference | Attitudes | Aerodynamics | Parameter identification | Euler-Lagrange equation | Adaptive control | Robust control | Decoupling | Moments of inertia | Parameter uncertainty | Physical simulation | Modelling | Mathematical models | Rotary wing aircraft | Proportional integral derivative | Adaptive LADRC | Qarameters identification | Quad-rotor | CIFER
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6. Full Text Aeromechanics of a Coaxial Ultralight Rotorcraft During Turn, Climb, and Descent Flight
by Feil, Roland and Hajek, Manfred
Journal of aircraft, ISSN 1533-3868, 01/2021, Volume 58, Issue 1, pp. 43 - 52
Flight tests | Blade tips | Aeromechanics | Flight conditions | Low speed | Rotor aerodynamics | Attack helicopters | Tip clearance | Diameters | Military helicopters | Horizontal loads | Mathematical models | Numerical models | Rotary wing aircraft | Angle of attack | Descent | Thrust
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7. Full Text Motor and Perception Constrained NMPC for Torque-Controlled Generic Aerial Vehicles
by Jacquet, Martin and Franchi, Antonio
IEEE robotics and automation letters, ISSN 2377-3766, 04/2021, Volume 6, Issue 2, pp. 518 - 525
Actuators | perception and autonomy | vision-based navigation | Propellers | Quaternions | Robot sensing systems | Trajectory | Mathematical model | mechanics and control | Task analysis | Aerial systems | Technology | Robotics | Science & Technology | Torque | Rotors | Perception | Actuation | Cameras | Visibility | Rotary wing aircraft | Nonlinear control | Predictive control | Systems and Control | Image Processing | Computer Science
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8. Full Text Winter atmospheric boundary layer observations over sea ice in the coastal zone of the Bay of Bothnia (Baltic Sea)
by Wenta, Marta and Brus, David and Doulgeris, Konstantinos and Vakkari, Ville and Herman, Agnieszka
Earth system science data, ISSN 1866-3508, 01/2021, Volume 13, Issue 1, pp. 33 - 42
Geosciences, Multidisciplinary | Physical Sciences | Geology | Meteorology & Atmospheric Sciences | Science & Technology | Drone aircraft | Numerical weather forecasting | Optical radar | Remote sensing | Planetary boundary layer | Sea ice | Relative humidity | Atmospheric models | Weather forecasting | Aerial photography | Weather stations | Properties | Coastal zone | Ice formation | Doppler sonar | Maps | Doppler lidar | Sea ice properties | Unmanned aerial vehicles | Rotary wing aircraft | Automatic weather stations | Photogrammetry | Bays | Pangea | Ice | Climate models | Ice cover | Ground stations | Weather | Coastlines | Properties (attributes) | Meteorological observations | Atmospheric boundary layer | Data sets | Aerial photographs | Airborne observation | Lidar | Photographs | Numerical prediction | Unmanned helicopters | Boundary layers
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9. Full Text EGO-Planner: An ESDF-Free Gradient-Based Local Planner for Quadrotors
by Zhou, Xin and Wang, Zhepei and Ye, Hongkai and Xu, Chao and Gao, Fei
IEEE robotics and automation letters, ISSN 2377-3766, 04/2021, Volume 6, Issue 2, pp. 478 - 485
aerial systems | Force | Trajectory | Planning | Resource management | Motion and path planning | Splines (mathematics) | Trajectory optimization | autonomous vehicle navigation | Drones | applications | Technology | Robotics | Science & Technology | Penalty function | Algorithms | Redundancy | Barriers | Rotary wing aircraft | Source code | Collision avoidance | Curve fitting | Collision dynamics
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10. Full Text A Numerical and Experimental Investigation of the Convective Heat Transfer on a Small Helicopter Rotor Test Setup
by Samad, Abdallah and Villeneuve, Eric and Morency, François and Volat, Christophe
Aerospace, ISSN 2226-4310, 02/2021, Volume 8, Issue 2, p. 53
Convective heat transfer | Wind tunnel testing | Correlation | Turbulent flow | Parameters | Icing wind tunnels | Wind tunnels | Computational fluid dynamics | Reynolds number | Fluid flow | Fixed wings | Stagnation point | Rotary wings | Airline scheduling | Deicing | Momentum theory | Correlation analysis | Vortex lattice method | Helicopter performance | Pitch (inclination) | Angle of attack | Aircraft | Heat transfer | CFD | convective heat transfer | rotorcraft | experiments | icing/de-icing
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11. Full Text Embedded Temperature Sensor Evaluations for Turbomachinery Component Health Monitoring
by Murugan, Muthuvel and Walock, Michael and Ghoshal, Anindya and Knapp, Robert and Caesley, Roger
Energies (Basel), ISSN 1996-1073, 02/2021, Volume 14, Issue 4, p. 852
Ceramic matrix composites | Fatigue testing machines | Turbomachinery | Optics | Rotor blades | High temperature | High temperature environments | Density | Life cycle costs | Titanium base alloys | Critical components | Fiber optics | Temperature sensors | Gas turbines | Technology | Temperature effects | Measurement techniques | Engine components | Titanium | Vanes | Armed forces | Rotary wing aircraft | Sensors | Protective coatings | Turbines | Military | Nickel base alloys | Component reliability | Army | Research & development--R&D | Gas turbine engines | Durability | Research projects | Wave division multiplexing | Fatigue tests | Single crystals | Industrial development | Life cycle analysis | Technology assessment | Rotor blades (turbomachinery) | Nickel | Questioning | turbomachinery | fiber Bragg temperature sensor | high temperature sensor evaluation | embedded fiber-optic sensor | component health monitoring
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12. Full Text Online Trajectory Planning for Multiple Quadrotors in Dynamic Environments Using Relative Safe Flight Corridor
by Park, Jungwon and Kim, H. Jin
IEEE robotics and automation letters, ISSN 2377-3766, 04/2021, Volume 6, Issue 2, pp. 659 - 666
path planning for multiple mobile robots or agents | Trajectory planning | Heuristic algorithms | distributed robot systems | Aerodynamics | Trajectory | Acceleration | Collision avoidance | Vehicle dynamics | Flight tests | Multiagent systems | Algorithms | Flight corridors | Barriers | Rotary wing aircraft | Relaxation method (mathematics) | Flight time
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13. Full Text Experimental aeromagnetic survey using a rotary-wing aircraft system: A case study in Heizhugou, Sichuan, China
by Bian, Jiangwei and Wang, Xuben and Gao, Song
Journal of applied geophysics, ISSN 0926-9851, 01/2021, Volume 184, p. 104245
System test | Rotary-wing UAV, Tethys | Fluxgate sensor | Aeromagnetic survey | Case studies | Drone aircraft | Sensors
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14. Full Text Maritime operation of an unmanned rotorcraft with tethered ship deck landing system
by Schuchardt, B. I and Dautermann, T and Donkels, A and Krause, S and Peinecke, N and Schwoch, G
CEAS aeronautical journal, ISSN 1869-5582, 01/2021, Volume 12, Issue 1, pp. 3 - 11
Algorithms | Navigation | Maritime areas | Ship decks | Rotary wing aircraft | Landing aids | Police | Unmanned helicopters | Image acquisition | Remotely piloted aircraft
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15. Full Text The International Symposium on Smart Aircraft - A Special Issue
by Soutis, Costas and Chen, Gang
Aeronautical journal, ISSN 0001-9240, 01/2021, Volume 125, Issue 1283, pp. 1 - 2
Engineering | Engineering, Aerospace | Technology | Science & Technology | Smart structures | Structural integrity | Cargo containers | Aircraft design | Research | Morphing | Design optimization | Education | Vibration control | Unmanned aerial vehicles | Rotary wing aircraft | Appendages | Microsatellites | Aeronautics | Social responsibility | Aerospace engineering | Vibration damping | Composite materials | Fire detection | Collaboration | Weight reduction | Air cargo | Composite structures | Aircraft | Aircraft structures
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16. Full Text Cooperative control for multiple quadrotors under position deviations and aerodynamic drag
by Yue, Yiping and Yang, Hongjiu and Liu, Fucai and Zang, Huaigang
Mechanical systems and signal processing, ISSN 0888-3270, 01/2021, Volume 147, p. 107096
Aerodynamic drag | Extended state observer | Multiple quadrotors | Cooperative control | Position deviation | Engineering | Technology | Engineering, Mechanical | Science & Technology | Electrical engineering | Aerodynamics | Analysis | Nonlinear feedback | Rotary wing aircraft | Feedback control | State observers | Sliding mode control | Nonlinear control | Subsystems
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17. Full Text TGK-Planner: An Efficient Topology Guided Kinodynamic Planner for Autonomous Quadrotors
by Ye, Hongkai and Zhou, Xin and Wang, Zhepei and Xu, Chao and Chu, Jian and Gao, Fei
IEEE robotics and automation letters, ISSN 2377-3766, 04/2021, Volume 6, Issue 2, pp. 494 - 501
collision avoidance | System dynamics | Trajectory | Planning | Topology | Safety | Mathematical model | Trajectory optimization | Aerial systems | motion and path planning | applications | Technology | Robotics | Science & Technology | Efficiency | Workflow | Rotary wing aircraft | Sampling | Smoothness | Optimization
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18. Full Text Generating Certification Evidence for Autonomous Aerial Vehicles Decision-Making
by Costello, Donald H and Xu, Huan
Journal of aerospace information systems, ISSN 2327-3097, 01/2021, Volume 18, Issue 1, pp. 3 - 13
Engineering | Engineering, Aerospace | Technology | Science & Technology | Controllers | Aircraft safety | Aviation | Decision making | Military strategy | Clearances | Landing | Specifications | Aircraft pilots | Unmanned aerial vehicles | Rotary wing aircraft | Aircraft | Unmanned aircraft
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19. Full Text Secure Communication for Multiquadrotor Networks Using Ethereum Blockchain
by Abichandani, Pramod and Lobo, Deepan and Kabrawala, Smit and McIntyre, William
IEEE internet of things journal, ISSN 2327-4662, 02/2021, Volume 8, Issue 3, pp. 1783 - 1796
testbed and trials | Cyber–physical systems | Robot kinematics | Software | Hardware | secure communications | Contracts | Computer Science, Information Systems | Engineering | Technology | Computer Science | Engineering, Electrical & Electronic | Telecommunications | Science & Technology | Blockchain | Images | Source code | Programming languages | Algorithms | Wireless networks | Computer architecture | Multiple robots | Unmanned aerial vehicles | Miniature aircraft | Rotary wing aircraft | Prototyping | Cryptography
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20. Full Text Autonomous Quadrotor Flight Despite Rotor Failure With Onboard Vision Sensors: Frames vs. Events
by Sun, Sihao and Cioffi, Giovanni and de Visser, Coen and Scaramuzza, Davide
IEEE robotics and automation letters, ISSN 2377-3766, 04/2021, Volume 6, Issue 2, pp. 580 - 587
event camera | Heuristic algorithms | Rotors | Aerial systems: perception and autonomy | Cameras | Aerodynamics | robot safety | Sensors | sensor-based control | State estimation | Standards | Robot Safety | Sensor-based Control | Event Camera. S The source code of both our controller and VIO algorithm is available at: https://github.com/uzh-rpg/faulttolerantcontrol A video of the experiments is available at: https://youtu.be/ Ww8u0KH7Ugs I | Aerial Systems: Perception and Autonomy | Stability | Flight control systems | Blurring | Yaw | Motion perception | Fault tolerance | Algorithms | Safety critical | Vision | Temporal resolution | Rotary wing aircraft | Failure | Computer Science - Robotics
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