• United States

Research Output 1969 2020

Filter
Conference contribution
11 Citations (Scopus)

CFD hover predictions including boundary-layer transition

Vieira, B. A. O., Kinzel, M. P. & Maughmer, M. D., Jan 1 2017, AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc., AIAA 2017-1665. (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computational fluid dynamics
Boundary layers
Rotors
NASA
Helicopters

CFD transition modeling: Blending classical methods with modern tools (invited)

Coder, J. G. & Maughmer, M. D., Jan 1 2015, 45th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, p. 1-19 19 p. (45th AIAA Fluid Dynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computational fluid dynamics
Correlation methods
Turbulence models
Amplification
Boundary layers
4 Citations (Scopus)

Challenges of flight control in a compound helicopter

Piasecki, F., Geiger, B., Horn, J. F., Schifferle, P. & Lotterio, M., Dec 1 2011, American Helicopter Society International - 3rd Annual Technical Specialists' Meeting on Vertical Lift Research, Development, Test and Evaluation 2011. p. 443-461 19 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Compound helicopters
4 Citations (Scopus)

Challenges of flight control in a compound helicopter

Geiger, B., Piasecki, F. W., Horn, J. F., Lotterio, M. & Schifferle, P., Dec 1 2010, International Powered Lift Conference 2010. p. 101-113 13 p. (International Powered Lift Conference 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Compound helicopters
Propellers
Helicopters
Aircraft
Fatigue of materials

Characterization of three-dimensional effects for the rotating and parked NREL phase VI wind turbine

Schmitz, S. & Chattot, J. J., Dec 1 2006, Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting. p. 4574-4593 20 p. (Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting; vol. 7).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

wind turbines
wind turbine
Wind turbines
vortex
Vortex flow
58 Citations (Scopus)

Character recognition using spiking neural networks

Gupta, A. & Long, L. N., Dec 1 2007, The 2007 International Joint Conference on Neural Networks, IJCNN 2007 Conference Proceedings. p. 53-58 6 p. 4370930. (IEEE International Conference on Neural Networks - Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Character sets
Character recognition
Neural networks
Neurons
Plasticity
1 Citation (Scopus)

Client-server Java programming for wireless mobile robots

Long, L. N., Sharma, A. & Souliez, F., Dec 1 2003, 41st Aerospace Sciences Meeting and Exhibit. (41st Aerospace Sciences Meeting and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

programming
Computer programming
robots
Mobile robots
vehicles
23 Citations (Scopus)

Closing the loop in dynamic soaring

Bird, J. J., Langelaan, J. W., Montella, C., Spletzer, J. & Grenestedt, J., Feb 28 2014, AIAA Guidance, Navigation, and Control Conference. (AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hardware
Turbulence
Trajectories
Integrated control
Aircraft
2 Citations (Scopus)

Cockpit decision-aids for the task of emergency trajectory generation

Chen, T. L. & Pritchett, A. R., Dec 1 2001, AIAA Guidance, Navigation, and Control Conference and Exhibit. (AIAA Guidance, Navigation, and Control Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Trajectories
Flight envelopes
Flight simulators
1 Citation (Scopus)

Cognitive robotics using vision and mapping systems with Soar

Long, L. N., Hanford, S. D. & Janrathitikarn, O., Jul 23 2010, Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2010. 77100J. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7710).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cognitive Robotics
robotics
robots
Robotics
Robots
1 Citation (Scopus)

Collaborative mapping and search for autonomous helicopters

Johnson, E., Mooney, J. G., Magree, D. P., White, M., Hartman, J. & Sahasrabudhe, V., Sep 9 2013, 69th American Helicopter Society International Annual Forum 2013. p. 1552-1560 9 p. (Annual Forum Proceedings - AHS International; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Helicopters
Aircraft
Avionics
Finite automata
Decision making
1 Citation (Scopus)

Collaborative search and pursuit for autonomous helicopters

Johnson, E. & Mooney, J. G., Jan 1 2014, 70th American Helicopter Society International Annual Forum 2014. American Helicopter Society, p. 2638-2646 9 p. (Annual Forum Proceedings - AHS International; vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Helicopters
Avionics
Decision making
Aircraft
1 Citation (Scopus)

Color response modification of encapsulated liquid crystals used in rotating disk heat transfer studies

Camci, C. & Glezer, B., Jan 1 1995, Turbomachinery. American Society of Mechanical Engineers (ASME), (Proceedings of the ASME Turbo Expo; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rotating disks
Liquid crystals
Heat transfer
Color
Temperature
6 Citations (Scopus)

Combined laser and vision-aided inertial navigation for an indoor unmanned aerial vehicle

Magree, D. & Johnson, E., Jan 1 2014, 2014 American Control Conference, ACC 2014. Institute of Electrical and Electronics Engineers Inc., p. 1900-1905 6 p. 6858995. (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Unmanned aerial vehicles (UAV)
Navigation
Lasers
Inertial navigation systems
Navigation systems
12 Citations (Scopus)

Command governor-Based adaptive control

Yucelen, T. & Johnson, E., Dec 1 2012, AIAA Guidance, Navigation, and Control Conference 2012. (AIAA Guidance, Navigation, and Control Conference 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Governors
Dynamical systems
Adaptive control systems
Stabilization
Trajectories
4 Citations (Scopus)

Command governor-based adaptive control of an autonomous helicopter

Magree, D., Yucelen, T. & Johnson, E., Dec 1 2012, AIAA Guidance, Navigation, and Control Conference 2012. (AIAA Guidance, Navigation, and Control Conference 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Governors
Helicopters
Controllers
Closed loop systems
Actuators

Command governor-based model reference control

De La Torre, G., Yucelen, T. & Johnson, E., Sep 11 2013, 2013 American Control Conference, ACC 2013. p. 4319-4324 6 p. 6580504

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Governors
Dynamical systems
Model reference adaptive control
Robust control
Parameterization
1 Citation (Scopus)

Command limiting for full-envelope guidance and control of rotorcraft

Sahani, N. A. & Horn, J. F., Dec 1 2005, Collection of Technical Papers - AIAA Guidance, Navigation, and Control Conference 2005. p. 4695-4705 11 p. (Collection of Technical Papers - AIAA Guidance, Navigation, and Control Conference; vol. 6).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Feedback
Torque
Flight envelopes
Controllability
Helicopters
10 Citations (Scopus)

Compact pericyclic continuously variable speed transmission systems: Design features and high-reduction variable speed case studies

Saribay, Z. B., Smith, E., Lemanski, A. J., Bill, R. C., Wang, K. W. & Rao, S., Dec 1 2007, AHS International 63rd Annual Forum - Proceedings - Riding the Wave of New Vertical Flight Technology. p. 2312-2322 11 p. (Annual Forum Proceedings - AHS International; vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Variable speed transmissions
Systems analysis
Torque
Rotors
18 Citations (Scopus)

Comparison of direct optimization methods applied to solar sail problems

Melton, R. G., 2002, AIAA/AAS Astrodynamics Specialist Conference and Exhibit. American Institute of Aeronautics and Astronautics Inc.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Venus (planet)
nonlinear programming
optimization
Legendre functions
collocation
17 Citations (Scopus)

Comparison of two- and three-dimensional turbulent cavity flows

Shieh, C. M. & Morris, P. J., 2001, 39th Aerospace Sciences Meeting and Exhibit.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

cavity flow
Wall function
cavity
Flow fields
Computational aeroacoustics
5 Citations (Scopus)

Comparison of two single-step, myopic sensor management decision processes applied to Space Situational Awareness

Williams, P. S., Spencer, D. B. & Erwin, R. S., Dec 1 2012, Spaceflight Mechanics 2012 - Advances in the Astronautical Sciences: Proceedings of the 22nd AAS/AIAA Space Flight Mechanics Meeting. p. 173-190 18 p. (Advances in the Astronautical Sciences; vol. 143).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

situational awareness
Satellites
sensor
sensors
Sensors
21 Citations (Scopus)

Computational aeroacoustic analysis of slat trailing-edge flow

Singer, B. A., Lockard, D. P., Brentner, K. S., Khorrami, M. R., Berkman, M. E. & Choudhari, M., Jan 1 1999, 5th AIAA/CEAS Aeroacoustics Conference and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA, p. 13-23 11 p. AIAA-99-1802. (5th AIAA/CEAS Aeroacoustics Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computational aeroacoustics
Acoustics
Vortex shedding
Unsteady flow
14 Citations (Scopus)

Computational analysis of a prototype martian rotorcraft experiment

Corfeld, K. J., Strawn, R. C. & Long, L. N., Jan 1 2002, 20th AIAA Applied Aerodynamics Conference. American Institute of Aeronautics and Astronautics Inc., (20th AIAA Applied Aerodynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rotors
Experiments
Design of experiments
Mach number
Turbomachine blades

Computational heat transfer modeling of ice roughened airfoils

Hanson, D. R., Kinzely, M. P., Han, Y. & Palacios, J., Jan 1 2016, 46th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (46th AIAA Fluid Dynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Airfoils
Ice
Heat transfer
Surface roughness
Glazes
8 Citations (Scopus)

Computational investigation of a boundary-layer ingesting propulsion system for the common research model

Blumenthal, B. T., Elmiligui, A. A., Geiselhart, K. A., Campbell, R. L., Maughmer, M. D. & Schmitz, S., Jan 1 2016, 46th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (46th AIAA Fluid Dynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Propulsion
Boundary layers
Geometry
Engines
Drag reduction
1 Citation (Scopus)

Computational modeling to predict pilot's expectation of the aircraft state given vestibular and visual cues

Onur, C., Bozan, A. & Pritchett, A., Jan 1 2014, 2014 IEEE Systems and Information Engineering Design Symposium, SIEDS 2014. IEEE Computer Society, p. 271-276 6 p. 6829914. (2014 IEEE Systems and Information Engineering Design Symposium, SIEDS 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aircraft
Accidents
Aircraft accidents
Aviation
Sampling
4 Citations (Scopus)

Computational validation of the flow through a turbine stage and the effects of rim seal cavity leakage on secondary flows

Turgut, Ö. H. & Camci, C., Dec 1 2012, ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, GT 2012. PARTS A, B, AND C ed. p. 1459-1472 14 p. (Proceedings of the ASME Turbo Expo; vol. 8, no. PARTS A, B, AND C).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Secondary flow
Seals
Turbines
Rotors
Axial flow

Computer vision and computational intelligence for real-time multi-modal space domain awareness

Bolden, M., Schumacher, P., Spencer, D., Hussein, I., Wilkins, M. & Roscoe, C., Jan 1 2017, Spaceflight Mechanics 2017. Sims, J. A., Leve, F. A., McMahon, J. W. & Guo, Y. (eds.). Univelt Inc., p. 2165-2178 14 p. (Advances in the Astronautical Sciences; vol. 160).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

computer vision
intelligence
Probability density function
Computer vision
Artificial intelligence

Concept of operations for earth-moon departures to Mars-Phobos distant retrograde orbit arrivals

Conte, D. & Spencer, D. B., Jan 1 2018, AAS/AIAA Astrodynamics Specialist Conference, 2018. Singla, P., Weisman, R. M., Marchand, B. G. & Jones, B. A. (eds.). Univelt Inc., p. 1315-1334 20 p. (Advances in the Astronautical Sciences; vol. 167).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

retrograde orbits
Phobos
Moon
natural satellites
mars
9 Citations (Scopus)

Concurrent learning adaptive control for linear switched systems

De La Torre, G., Chowdhary, G. & Johnson, E., Sep 11 2013, 2013 American Control Conference, ACC 2013. p. 854-859 6 p. 6579943

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Switches
Asymptotic stability
Dynamical systems
13 Citations (Scopus)

Concurrent learning adaptive control of linear systems with noisy measurements

M̈uhlegg, M., Chowdhary, G. & Johnson, E., Dec 1 2012, AIAA Guidance, Navigation, and Control Conference 2012. (AIAA Guidance, Navigation, and Control Conference 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Linear systems
Model reference adaptive control
Controllers
Robustness (control systems)
Dynamical systems
132 Citations (Scopus)

Concurrent learning for convergence in adaptive control without persistency of excitation

Chowdhary, G. & Johnson, E., Dec 1 2010, 2010 49th IEEE Conference on Decision and Control, CDC 2010. p. 3674-3679 6 p. 5717148

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Adaptive Control
Concurrent
Excitation
Instantaneous
Linear independence
11 Citations (Scopus)

Concurrent learning for improved convergence in adaptive flight control

Chowdhary, G. & Johnson, E. N., Dec 1 2010, AIAA Guidance, Navigation, and Control Conference. AIAA 2010-7540. (AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Model reference adaptive control
Fixed wings
Asymptotic stability
Rocks
Aircraft
15 Citations (Scopus)

Conjugate unscented transform and its application to filtering and stochastic integral calculation

Adurthi, N., Singla, P. & Singh, T., Dec 1 2012, AIAA Guidance, Navigation, and Control Conference 2012. (AIAA Guidance, Navigation, and Control Conference 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nonlinear filtering
Computational complexity
Polynomials
Air

Conjugate unscented transformation based approach to compute higher order state transition matrix for nonlinear dynamic systems: Applications to uncertainty propagation

Lee, T., Singla, P. & Majji, M., Jan 1 2018, ASTRODYNAMICS 2017. Seago, J. H., Strange, N. J., Scheeres, D. J. & Parker, J. S. (eds.). Univelt Inc., p. 2913-2936 24 p. (Advances in the Astronautical Sciences; vol. 162).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dynamical systems
collocation
matrix
propagation
probability density function

Conjugate unscented transformation based collocation scheme to solve the Hamilton jacobi bellman equation

Adurthi, N., Singla, P. & Majji, M., Jan 1 2016, Astrodynamics 2015. Turner, J. D., Wawrzyniak, G. G., Cerven, W. T. & Majji, M. (eds.). Univelt Inc., p. 3163-3180 18 p. (Advances in the Astronautical Sciences; vol. 156).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

collocation
Partial differential equations
Nonlinear systems
Dynamical systems
Mathematical transformations
2 Citations (Scopus)

Conjugate unscented transformation based orbital state estimation and sensor tasking for efficient space surveillance

Adurthi, N., Majji, M. & Singla, P., Jan 1 2014, AIAA/AAS Astrodynamics Specialist Conference 2014. American Institute of Aeronautics and Astronautics Inc., (AIAA/AAS Astrodynamics Specialist Conference 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Space surveillance
space surveillance
situational awareness
state estimation
State estimation
4 Citations (Scopus)

Conjugate Unscented Transform based approach for dynamic sensor tasking and Space Situational Awareness

Adurthi, N., Singla, P. & Majji, M., Jul 28 2015, ACC 2015 - 2015 American Control Conference. Institute of Electrical and Electronics Engineers Inc., p. 5218-5223 6 p. 7172154. (Proceedings of the American Control Conference; vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mathematical transformations
Sensors
State estimation
Monitoring
Computer simulation
1 Citation (Scopus)

Conjugate unscented transform-based approach to solve the fokker-planck-kolmogorov equation

Mercurio, M. & Singla, P., Jan 1 2016, AIAA/AAS Astrodynamics Specialist Conference, 2016. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA/AAS Astrodynamics Specialist Conference, 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fokker Planck equation
collocation
Mathematical transformations
probability density functions
Probability density function

Conjugate unscented transform based joint probability data association

Adurthi, N., Majji, M., Mishra, U. R. & Singla, P., Jan 1 2018, ASTRODYNAMICS 2017. Seago, J. H., Strange, N. J., Scheeres, D. J. & Parker, J. S. (eds.). Univelt Inc., p. 537-552 16 p. (Advances in the Astronautical Sciences; vol. 162).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Extended Kalman filters
State estimation
transform
state estimation
Kalman filters
29 Citations (Scopus)

Conjugate Unscented Transform rules for uniform probability density functions

Adurthi, N., Singla, P. & Singh, T., Sep 11 2013, 2013 American Control Conference, ACC 2013. p. 2454-2459 6 p. 6580202. (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Probability density function
Polynomials
Mathematical transformations
Tensors
Numerical methods
2 Citations (Scopus)

Consensus protocols for networked multiagent systems with a uniformly continuous quasi-resetting architecture

Yucelen, T., Haddad, W. M. & Johnson, E., Sep 11 2013, 2013 American Control Conference, ACC 2013. p. 2019-2024 6 p. 6580132. (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Multi agent systems
Controllers
Feedback
2 Citations (Scopus)

Consensus protocols for networked multiagent systems with relative position and neighboring velocity information

De La Torre, G., Yucelen, T. & Johnson, E. N., Jan 1 2013, 2013 IEEE 52nd Annual Conference on Decision and Control, CDC 2013. Institute of Electrical and Electronics Engineers Inc., p. 811-816 6 p. 6759982. (Proceedings of the IEEE Conference on Decision and Control).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Multi agent systems
Multi-agent Systems
Topology
Graph Laplacian
Governors

Consensus protocols in networked multiagent systems for cluttered and hostile environments

De La Torre, G., Johnson, E. N. & Yucelen, T., Sep 16 2013, AIAA Guidance, Navigation, and Control (GNC) Conference. (AIAA Guidance, Navigation, and Control (GNC) Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Multi agent systems
Cost functions
Antenna grounds
Antennas
Costs
3 Citations (Scopus)

Consistency monitoring of Adaptive Controllers using Bayesian linear regression

Szukalski, R., Muhlegg, M. & Johnson, E., Jul 28 2015, ACC 2015 - 2015 American Control Conference. Institute of Electrical and Electronics Engineers Inc., p. 177-182 6 p. 7170731. (Proceedings of the American Control Conference; vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Linear regression
Controllers
Monitoring
Aircraft
Feedback
1 Citation (Scopus)

Constrained formation protocols for networked multiagent systems

De La Torre, G., Yucelen, T. & Johnson, E., Sep 2 2013, 2013 International Conference on Unmanned Aircraft Systems, ICUAS 2013 - Conference Proceedings. p. 824-830 7 p. 6564766. (2013 International Conference on Unmanned Aircraft Systems, ICUAS 2013 - Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Multi agent systems
Collision avoidance
Cost functions
15 Citations (Scopus)

Constrained time-optimal slewing maneuvers for rigid spacecraft

Melton, R. G., Dec 1 2010, Astrodynamics 2009 - Advances in the Astronautical Sciences: Proceedings of the AAS/AIAA Astrodynamics Specialist Conference. p. 107-126 20 p. (Advances in the Astronautical Sciences; vol. 135).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

slewing
Optical sensors
maneuvers
Observatories
optical measuring instruments
16 Citations (Scopus)

Contact-aided compliant mechanisms for morphing aircraft skin

Mehta, V., Frecker, M. & Lesieutre, G., Jun 2 2008, Modeling, Signal Processing, and Control for Smart Structures 2008. 69260C. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 6926).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Compliant mechanisms
Compliant Mechanism
Morphing
Skin
aircraft
3 Citations (Scopus)

Contact mechanics and elasto-hydrodynamic lubrication analysis of internal-external straight bevel gear mesh in a pericyclic drive

Mathur, T. D., Smith, E. C., Chang, L. & Bill, R. C., Jan 1 2017, 2017 ASME International Power Transmission and Gearing Conference. American Society of Mechanical Engineers (ASME), (Proceedings of the ASME Design Engineering Technical Conference; vol. 10).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elastohydrodynamic Lubrication
Contact Mechanics
Bevel gears
Epicyclic gears
Contacts (fluid mechanics)