Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
5,883 matches
- arXiv 2024 ARXIV arXiv preprint
Dynamic Decentralized 3D Urban Coverage and Patrol with UAVs
In the event of natural or man-made disasters in an urban environment, such as fires, floods, and earthquakes, a swarm of unmanned aerial vehicles (UAVs) can rapidly sweep and provide coverage to monitor the area of inte…
- arXiv 2024 ARXIV arXiv preprint
Toward Enhanced Reinforcement Learning-Based Resource Management via Digital Twin: Opportunities, Applications, and Challenges
This article presents a digital twin (DT)-enhanced reinforcement learning (RL) framework aimed at optimizing performance and reliability in network resource management, since the traditional RL methods face several unifi…
- arXiv 2024 ARXIV arXiv preprint
Enhanced In-Flight Connectivity for Urban Air Mobility via LEO Satellite Networks
Urban Air Mobility (UAM) is the envisioned future of inter-city aerial transportation. This paper presents a novel, in-flight connectivity link allocation method for UAM, which dynamically switches between terrestrial ce…
- arXiv 2024 ARXIV arXiv preprint
An Integrated Supply Chain Network Design for Advanced Air Mobility Aircraft Manufacturing Using Stochastic Optimization
Electric vertical takeoff and landing (eVTOL) aircraft manufacturers await numerous pre-orders for eVTOLs and expect demand for such advanced air mobility (AAM) aircraft to rise dramatically soon.
- arXiv 2024 ARXIV arXiv preprint
A Generalized Pointing Error Model for FSO Links with Fixed-Wing UAVs for 6G: Analysis and Trajectory Optimization
Free-space optical (FSO) communication is a promising solution to support wireless backhaul links in emerging 6G non-terrestrial networks.
- NASA NTRS 2024 GSFC Reprint (Version printed in journal)
Comparative Analysis of Empirical and Machine Learning Models for Chla Extraction Using Sentinel-2 and Landsat OLI Data: Opportunities, Limitations, and Challenges
Remote retrieval of near-surface chlorophyll-a (Chla) concentration in small inland waters is challenging due to substantial optical interferences of various water constituents and uncertainties in the atmospheric correc…
- NASA NTRS 2024 GSFC Presentation
NASA GSFC EEE Parts Failure Analysis: Isolating Integrated Circuit Electrical Damage
- arXiv 2024 ARXIV arXiv preprint
Sensing, Communication, and Control Co-design for Energy Efficient Satellite-UAV Networks
Traditional terrestrial communication infrastructures often fail to collect the timely information from Internet of Thing (IoT) devices in remote areas.
- arXiv 2024 ARXIV arXiv preprint
Innovative Gain Reconfiguration for Active Fault-Tolerant Flight Control: Balance of Stability and Agility
In this study, a distinct reconfigurable fault-tolerant flight control strategy is addressed for mitigating one of the persistent safety-critical issue, i.e. loss of control triggered by actuator faults.
- arXiv 2024 ARXIV arXiv preprint
High-fidelity study of three-dimensional turbulent transonic buffet on wide-span infinite wings
Turbulent transonic buffet is an aerodynamic instability causing periodic oscillations of lift/drag in aerospace applications. Involving complex coupling between inviscid and viscous effects, buffet is characterised by s…
- NASA NTRS 2024 ARC Presentation
The Impact of Controlled Rest on Neurobehavioral Outcomes at Top-of-Descent
INTRODUCTION: Long and irregular working hours can lead to fatigue in aviation operations. In some regions, a short nap taken on the flight deck (known as controlled rest) can be used as a countermeasure to unexpected in…
- SKYbrary (Eurocontrol) 2024 SKYBRARY SKYbrary article
Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- arXiv 2024 ARXIV arXiv preprint
Modeling and Control of a Novel Bi-Quadcopter with Auxiliary Thruster Mechanism
In this paper, a new under-actuated Bi-Quadcopter Unmanned Aerial Vehicle is introduced. The proposed drone configuration can be controlled similar to a Bicopter.
- arXiv 2024 ARXIV arXiv preprint
Six-Degree-of-Freedom Aircraft Landing Trajectory Planning with Runway Alignment
This paper presents a numerical optimization algorithm for generating approach and landing trajectories for a six-degree-of-freedom (6-DoF) aircraft.
- arXiv 2024 ARXIV arXiv preprint
Aircraft Conflict Resolution: A Benchmark Generator
Aircraft conflict resolution is one of the major tasks of computer-aided air traffic management and represents a challenging optimization problem.
- arXiv 2024 ARXIV arXiv preprint
Design, Control, and Motion-Planning for a Root-Perching Rotor-Distributed Manipulator
Manipulation performance improvement is crucial for aerial robots. For aerial manipulators, the baselink position and attitude errors directly affect the precision at the end effector.
- arXiv 2024 ARXIV arXiv preprint
Probabilistic Eddy Identification with Uncertainty Quantification
Mesoscale eddies are critical in ocean circulation and the global climate system. Standard eddy identification methods are usually based on deterministic optimal point estimates of the ocean flow field.
- Semantic Scholar 2024 Article (Syst.)
Exploring Safety Culture in Urban Air Mobility: System of Systems Perspectives Using Enterprise Architecture
Urban Air Mobility (UAM) is an emerging industry marked by technological advancements, new operational contexts, and regulatory frameworks.
- arXiv 2024 ARXIV arXiv preprint
Role of melting and solidification in the spreading of an impacting water drop
The present study reports experiments of water droplet impacting on ice or on a cold metallic substrate, with the aim of understanding the effect of phase change on the impingement process.
- Flight Safety Foundation 2024 FSF FSF / AeroSafety World
BASS 2024 Proceedings — Business Aviation Safety Summit
Proceedings from the 2024 Foundation + NBAA Business Aviation Safety Summit (Charleston, SC). Topics: just culture + SMS implementation across small Part 91/91K flight departments, fatigue management in single-pilot ops,…
- NASA NTRS 2024 MSFC Conference Paper
Assessing Engine Hot Fire Data for Human Spaceflight Applications
Development and certification of liquid engine systems for human spaceflight missions requires exhaustive analysis to meet the NASA’s requirements for engine health, reliability, and performance.
- NASA NTRS 2024 MSFC Presentation
Assessing Engine Hot Fire Data for Human Spaceflight Applications
Development and certification of liquid engine systems for human spaceflight missions requires exhaustive analysis to meet the NASA’s requirements for engine health, reliability, and performance.
- arXiv 2024 ARXIV arXiv preprint
Uncovering GNSS Interference with Aerial Mapping UAV
Global Navigation Satellite System (GNSS) receivers provide ubiquitous and precise position, navigation, and time (PNT) to a wide gamut of civilian and tactical infrastructures and devices.
- arXiv 2024 ARXIV arXiv preprint
Modeling sea ice in the marginal ice zone as a dense granular flow with rheology inferred from discrete element model data
The marginal ice zone (MIZ) represents the periphery of the sea ice cover. In this region, the macroscale behavior of the sea ice results from collisions and enduring contact between ice floes.
- arXiv 2024 ARXIV arXiv preprint
AdaptNet: Rethinking Sensing and Communication for a Seamless Internet of Drones Experience
In the evolving era of Unmanned Aerial Vehicles (UAVs), the emphasis has moved from mere data collection to strategically obtaining timely and relevant data within the Internet of Drones (IoDs) ecosystem.
- arXiv 2024 ARXIV arXiv preprint
Demonstrating Reinforcement Learning and Run Time Assurance for Spacecraft Inspection Using Unmanned Aerial Vehicles
On-orbit spacecraft inspection is an important capability for enabling servicing and manufacturing missions and extending the life of spacecraft.
- arXiv 2024 ARXIV arXiv preprint
PowerLine Unmanned Surfer (PLUS): Shape Adaptive Dynamics Development and Control Design
This paper introduces the powerline unmanned surfer (PLUS) concept to extend the limited endurance of fixed wing unmanned aerial vehicles (UAVs) via in-flight energy harvesting from overhead electrical distribution power…
- arXiv 2024 ARXIV arXiv preprint
Banking Turn of High-DOF Dynamic Morphing Wing Flight by Shifting Structure Response Using Optimization
The 3D flight control of a flapping wing robot is a very challenging problem. The robot stabilizes and controls its pose through the aerodynamic forces acting on the wing membrane which has complex dynamics and it is dif…
- arXiv 2024 ARXIV arXiv preprint
ATDM:An Anthropomorphic Aerial Tendon-driven Manipulator with Low-Inertia and High-Stiffness
Aerial Manipulator Systems (AMS) have garnered significant interest for their utility in aerial operations. Nonetheless, challenges related to the manipulator's limited stiffness and the coupling disturbance with manipul…
- NASA NTRS 2024 ARC Presentation
Where and How Well Do Cabin Crew Sleep During Long-Haul Flights?
INTRODUCTION: Sleep loss and circadian disruption pose a significant risk in aviation. Many studies have shown that inflight rest locations influence alertness and performance among pilots, but few studies have evaluated…
- NASA NTRS 2024 JSC Presentation
Task Load Management in Earth Independent Medical Operations
BACKGROUND: Medical care in spaceflight carries a high task load and can easily overwhelm a small crew. Present day operations in low Earth orbit (LEO) offload most medical tasks to ground teams in mission control.
- arXiv 2024 ARXIV arXiv preprint
Resource Optimization in UAV-assisted IoT Networks: The Role of Generative AI
We investigate how generative Artificial Intelligence (AI) can be used to optimize resources in Unmanned Aerial Vehicle (UAV)-assisted Internet of Things (IoT) networks.
- arXiv 2024 ARXIV arXiv preprint
Coordinating Cooperative Perception in Urban Air Mobility for Enhanced Environmental Awareness
The trend for Urban Air Mobility (UAM) is growing with prospective air taxis, parcel deliverers, and medical and industrial services. Safe and efficient UAM operation relies on timely communication and reliable data exch…
- arXiv 2024 ARXIV arXiv preprint
Modelling the evolution of an ice sheet's weathering crust
The weathering crust is a layer of porous ice that can form at the surface of an ice sheet. It grows and decays in response changing weather and climate conditions, affecting the albedo, the melt rate, and the transport …
- arXiv 2024 ARXIV arXiv preprint
Haptic-Based Bilateral Teleoperation of Aerial Manipulator for Extracting Wedged Object with Compensation of Human Reaction Time
Bilateral teleoperation of an aerial manipulator facilitates the execution of industrial missions thanks to the combination of the aerial platform's maneuverability and the ability to conduct complex tasks with human sup…
- arXiv 2024 ARXIV arXiv preprint
Symmetry breaking of rotating convection due to Non-Oberbeck-Boussinesq effects
The non-Oberbeck--Boussinesq (NOB) effects arising from variations in thermal expansivity are theoretically and numerically studied in the context of rotating Rayleigh--Bénard convection in forms of two-dimensional (2D) …
- Semantic Scholar 2024 Article (Reliability Engineering & System Safety)
Application of text mining and coupling theory to depth cognition of aviation safety risk
- Semantic Scholar 2024 Article (The Journal of Nutrition, Health & Aging)
The role of nutritional supplement on post-stroke fatigue: a pilot randomized controlled trial
Objectives Post-stroke fatigue (PSF) is an experience characterized by an early feeling of exhaustion with fatigue, a lack of energy, and difficulty in exertion, both motor and cognitive.
- arXiv 2024 ARXIV arXiv preprint
Atmospheric cooling of freshwater near the temperature of maximum density
We perform three-dimensional direct numerical simulations of surface-driven convection near the temperature of maximum density $\tilde T_{md}$.
- arXiv 2024 ARXIV arXiv preprint
Three-Dimension Collision-Free Trajectory Planning of UAVs Based on ADS-B Information in Low-Altitude Urban Airspace
The environment of low-altitude urban airspace is complex and variable due to numerous obstacles, non-cooperative aircrafts, and birds.
- NASA NTRS 2024 LaRC Technical Memorandum (TM)
Testing of Advanced Capabilities to Enable In-time Safety Management and Assurance for Future Flight Operations
In order to refine an initial Concept of Operations, explore Concepts of Use, and expose/validate requirements for future In-Time Aviation Safety Management Systems (IASMS), testing architectures were created, along with…
- arXiv 2024 ARXIV arXiv preprint
Age of Information Minimization using Multi-agent UAVs based on AI-Enhanced Mean Field Resource Allocation
Unmanned Aerial Vehicle (UAV) swarms play an effective role in timely data collection from ground sensors in remote and hostile areas.
- arXiv 2024 ARXIV arXiv preprint
Air-taxi trajectory optimization with aerodynamic and motor models
To fulfill the vision for large-scale urban air mobility, air-taxi concepts must be carefully designed and optimized for their intended mission.
- Semantic Scholar 2024 Article (International Conference on Networking and Services)
Integrated Arrival and Departure Management for Urban Air Mobility Vertiport Operations in the New York City Airspace
This paper introduces the Vertiport Human-Automation Teaming Toolbox (V-HATT), a novel framework developed for managing Urban Air Mobility (UAM) in terminal airspace and vertiports.
- Semantic Scholar 2024 Article (International Conference on Networking and Services)
TADAD: Trust AI-based Decentralized Anomaly Detection for Urban Air Mobility Networks at Tactical Edges
Urban Air Mobility (UAM) networks pose challenges to confidentiality, availability, and integrity within security and safety concerns.
- Semantic Scholar 2024 Article (International Conference on Networking and Services)
Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss of Control In-flight…
- arXiv 2024 ARXIV arXiv preprint
Automated Real-Time Inspection in Indoor and Outdoor 3D Environments with Cooperative Aerial Robots
This work introduces a cooperative inspection system designed to efficiently control and coordinate a team of distributed heterogeneous UAV agents for the inspection of 3D structures in cluttered, unknown spaces.
- Semantic Scholar 2024 Article (CEAS Aeronautical Journal)
Toward robust and efficient communications for urban air mobility
For the realization of the future urban air mobility, reliable information exchange based on robust and efficient communication between all airspace participants will be one of the key factors to ensure safe operations.
- arXiv 2024 ARXIV arXiv preprint
Saturated RISE control for considering rotor thrust saturation of fully actuated multirotor
This work proposes a saturated robust controller for a fully actuated multirotor that takes disturbance rejection and rotor thrust saturation into account.
- arXiv 2024 ARXIV arXiv preprint
UAV Trajectory Optimization for Sensing Exploiting Target Location Distribution Map
In this paper, we study the trajectory optimization of a cellular-connected unmanned aerial vehicle (UAV) which aims to sense the location of a target while maintaining satisfactory communication quality with the ground …