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W Steven Gray

  • W Steven Gray
  • Associate Professor
  • Electrical & Computer Engineering
  • 231k Kaufman Hall
  • Norfolk, VA 23529
  • 757-683-4671
  • sgray@odu.edu
  • Web Page
  • W. Steven Gray received the B.S. degree in electrical engineering from Purdue University, West Lafayette, IN, in 1983, the M.S. degree in electrical engineering, the M.S. degree in applied mathematics, and the Ph.D. in electrical engineering from the Georgia Institute of Technology, Atlanta, in 1985, 1988, and 1989, respectively. He is currently with the Electrical and Computer Engineering Faculty, Old Dominion University, Norfolk, VA. His research interests include modeling and control theory for nonlinear systems.
  • Education

    Georgia Institute Of Technology, 1989
    Major: Electrical Engineering
    Degree: Ph. D.
    Georgia Institute of Technology, 1988
    Major: Applied Mathematics
    Degree: M.S.
    Georgia Institute of Technology, 1985
    Major: Electrical Engineering
    Degree: M.S.
    Purdue University, 1983
    Major: Electrical Engineering
    Degree: B.S.
  • Research Interests

    Formal power series methods for nonlinear systems analysis; realization theory and model reduction for nonlinear systems; fault-tolerant control for safety critical systems.
  • Awarded membership in honor societies Eta Kappa Nu, Electrical Engineering, Pi Mu Epsilon, Mathematics, Pi Eta Sigma, Scholastics, Sigma Xi, Scientific Research, Tau Beta Pi, Engineering
  • 2006: Best Paper in Session Award On the Markov Property for Nonlinear Discrete-Time Systems with Markovian Inputs’ (with A. Tejada and O. R. Gonzalez), 2006 American Control Conference
  • 2005: Best Paper in Session Award for ‘Performance Analysis of Recoverable Flight Control Systems Using Hybrid Dynamical Models’ (with H. Zhang and O. R. Gonzalez), 2005 American Control Conference
  • 2005: Outstanding Research Award, Department of Electrical and Computer Engineering, Old Dominion University
  • 2003: Best Paper in Session Award for ‘A Self-Adaptive Predictive Congestion Control Model for Extreme Networks’ (with Y. Li and M. Song), 2003 International Conference on Computer Communication and Control Technologies
  • 2003: Excellence in Research Award, College of Engineering and Technology, Old Dominion University
  • 2003: Outstanding Teaching Award, Department of Electrical and Computer Engineering, Old Dominion University
  • 2002: Best Paper in Session Award for ‘Analysis of Design Tradeoffs in Rollback Recovery Methods for Fault Tolerant Digital Control Systems’ (with O. R. Gonz´alez and A. Tejada), American Control Conference
  • 2002: Best SAE Technical Paper in 2001 for ‘Analytical Tools for the Design and Verification of Safety Critical Control Systems’ (with O. R. Gonz´alez and A. Tejada), SAE Transactions Journal of Aerospace
  • 1999: Best Paper in Session Award for ‘Digital Linear State Feedback Control Subject to Electromagnetic Disturbances’ (with O. R. Gonzalez and M. Dogan), American Control Conference
  • 1999: Best Paper in Session Award for ‘On Singular Value Functions and Hankel Operators for Nonlinear Systems’ (with J. M. A. Scherpen), American Control Conference
  • 1998: Best Paper in Session Award for ‘Modeling Electromagnetic Disturbances in Closed-Loop Computer Controlled Flight Systems’ (with O. R. Gonzalez), American Control Conference
  • 1998: Best Paper in Session Award for ‘Sufficient Conditions for Minimality of a Nonlinear Realization via Controllability and Observability Functions’ (with J. M. A. Scherpen), American Control Conference
  • 1997: Visiting Scholar, Delft Institute of Technology, The Netherlands
  • 1992: NASA-ASEE Summer Faculty Fellowship, NASA Langley Research Center
  • 1991: Research Scholar Award, Drexel University
  • 1989: Outstanding Graduate Teaching Assistant Award, Georgia Tech
  • 1988: Schlumberger Foundation Fellowship, Georgia Tech
  • 1986: TRW Augmentation Fellowship, Georgia Tech
  • 1984: The President’s Fellowship, Georgia Tech
  • 1983: Nominated for the Henry Ford II Scholarship, Purdue University
  • 1982: Atlantic Richfield’s Academic Excellence Award, Purdue University
  • 1981: Alcoa Foundation Scholarship, Purdue University, Purdue University
  • 1981: Alcoa Foundation Scholarship, Purdue University, Tau Beta Pi, Purdue University
  • 1981: Purdue Distinguished Student Award, Purdue University
  • Contracts, Grants and Sponsored Research

    Design and Analysis of Recoverable Flight Control Systems for Harsh Environments via the SPIDER Architecture
    Sponsoring Organization: NASA Langley Research Center Cooperative Agreement NNX07AD52A
    Date: 2007 - 2012
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Advanced Concepts for Recoverable Controllers in Safety Critical Systems
    Sponsoring Organization: NASA Langley Research Center Cooperative Agreement NNL04AA03A
    Date: 2004 - 2007
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    System Level Effects of Neutron Induced Single Event Upsets on Recoverable Digital Control Systems
    Sponsoring Organization: NASA Langley Research Center Cooperative Agreement NCC-1-03026
    Date: 2003 - 2006
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Hybrid Modeling and Analysis of Error Recovery in Safety Critical Flight Control Systems
    Sponsoring Organization: National Science Foundation Grant CCR-0209094
    Date: 2002 - 2005
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Supplement to ODURF Project #101831
    Sponsoring Organization: NASA Langley Research Center NCC-1-392, Supplement
    Date: 2002 - 2003
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Stochastic Dynamical Models for Digital Control Systems in Electromagnetic Environments
    Sponsoring Organization: NASA Langley Research Center Cooperative Agreement NCC-1-392
    Date: 2000 - 2003
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Robust Stability and Performance of a Closed-Loop Computer Control System Subject to Electromagnetic Disturbances
    Sponsoring Organization: NASA Langley Research Center Grant NAS-1-99093
    Date: 1999 - 2000
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Supplemental Funds for Characterization, Control and Commissioning of the Magnetic Suspension and Balance System for the Princeton/ONR High Reynolds Number Testing Facility
    Sponsoring Organization: Princeton University Grant 150-67555-1
    Date: 1999 - 2000
    Awarding Organization: Other
    Investigators:Gray, W. S.; Britcher, C. P.; Gonzalez, O.
    Characterization, Control and Commissioning of the Magnetic Suspension and Balance System for the Princeton/ONR High Reynolds Number Testing Facility
    Sponsoring Organization: Office of Naval Research Grant N00014-99-1-0298
    Date: 1998 - 2000
    Awarding Organization: Other
    Investigators:Gray, W. S.; Britcher, C. P.; Gonzalez, O.
    Balancing and Model Reduction for Nonlinear Dynamical Systems
    Sponsoring Organization: North Atlantic Treaty Organization - NATO Country Cooperative Research Grant CRG-97113
    Date: 1997 - 1999
    Awarding Organization: Other
    Investigators:Gray, W. S.; Scherpen, J.; Mesko, J.
    Stability Analysis and Augmentation of a Closed-Loop Computer Control System Subject to Electromagnetic Disturbances
    Sponsoring Organization: NASA Langley Research Center Grant NAS-1-19858
    Date: 1997 - 1998
    Awarding Organization: Federal
    Investigators:Gray, W. S.; Gonzalez, O.
    Neural Control of Magnetic Suspension Systems for Aerospace Applications
    Sponsoring Organization: NASA Langley Research Center Grant
    Date: 1993 - 1994
    Awarding Organization: Federal
    Investigators:Gray, W. S.
    Engineering Issues in Designing Feedback Linearizing Controllers
    Sponsoring Organization: Drexel University - Research Scholar Award
    Date: 1991 - 1991
    Awarding Organization: Other
    Investigators:Gray, W. S.