Asok Ray

    • 6923 Citations
    • 36 h-Index
    1976 …2019
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    Research Output 1976 2019

    10 Citations (Scopus)

    Neural network representation of fatigue damage dynamics

    Li, C. J. & Ray, A., Dec 1 1995, In : Smart Materials and Structures. 4, 2, p. 126-133 8 p., 009.

    Research output: Contribution to journalArticle

    Fatigue damage
    damage
    Neural networks
    Service life
    service life
    2 Citations (Scopus)
    forecasting
    alphabets
    Time series
    Probability distributions
    autoregressive moving average
    7 Citations (Scopus)

    Nonlinear control of a reusable rocket engine for life extension

    Lorenzo, C. F., Ray, A. & Holmes, M. S., Jan 1 2001, In : Journal of Propulsion and Power. 17, 5, p. 998-1004 7 p.

    Research output: Contribution to journalArticle

    reusable rocket engines
    Reusable rockets
    Plant life extension
    Rocket engines
    controllers
    5 Citations (Scopus)

    Nonlinear dynamic model of a fiuidized-bed steam generation system

    Ray, A., Berkowitz, D. A. & Sumaria, V. H., Jan 1 1980, In : Journal of Engineering for Gas Turbines and Power. 102, 1, p. 202-208 7 p.

    Research output: Contribution to journalArticle

    Dynamic models
    Steam
    Transient analysis
    Fluidized beds
    Atmospheric pressure
    15 Citations (Scopus)

    Nonlinear dynamic model of a solar steam generator

    Ray, A., Jan 1 1981, In : Solar Energy. 26, 4, p. 297-306 10 p.

    Research output: Contribution to journalArticle

    Steam generators
    Dynamic models
    Incident solar radiation
    Hydraulic models
    Steam
    6 Citations (Scopus)

    Nonlinear life-extending control of a rocket engine

    Lorenzo, C. F., Holmes, M. S. & Ray, A., Jan 1 2000, In : Journal of Guidance, Control, and Dynamics. 23, 4, p. 759-762 4 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    rocket engines
    Rocket engines
    Transient analysis
    thrust chamber pressure
    3 Citations (Scopus)

    Nonlinear reinforcement schemes for learning automata

    Garcia, H. E. & Ray, A., 1990, In : Proceedings of the IEEE Conference on Decision and Control. 4, p. 2204-2207 4 p.

    Research output: Contribution to journalArticle

    Learning Automata
    Reinforcement
    Experiments
    Unstable
    Unit vector
    1 Citation (Scopus)

    Nonlinear stochastic model of fatigue crack length for on-line damage sensing

    Ray, A. & Tangirala, S., Dec 1 1996, Proceedings of the IEEE Conference on Decision and Control. Anon (ed.). p. 3676-3681 6 p. (Proceedings of the IEEE Conference on Decision and Control; vol. 4).

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Stochastic models
    Statistics
    Extended Kalman filters
    Model structures
    Machinery

    Objective classification of two-phase flow regimes via ultrasonic signals

    Talley, J. D., Chakraborty, S., Keller, E., Ray, A. & Kim, S., 2009, In : Transactions of the American Nuclear Society. 100, p. 734-735 2 p.

    Research output: Contribution to journalArticle

    Two phase flow
    Ultrasonics
    12 Citations (Scopus)

    Observability under recurrent loss of data

    Luck, R., Ray, A. & Halevi, Y., Jan 1 1992, In : Journal of Guidance, Control, and Dynamics. 15, 1, p. 284-287 4 p.

    Research output: Contribution to journalArticle

    aircraft control
    Aircraft control
    systems stability
    Observability
    redundancy
    1 Citation (Scopus)

    Observer design for compensation of network-induced delays in integrated communication and control systems

    Luck, R. & Ray, A., Dec 1 1988, p. 175-182. 8 p.

    Research output: Contribution to conferencePaper

    Communication systems
    Control systems
    Spacecraft
    Decision making
    Aircraft
    5 Citations (Scopus)

    Observer-embedded L2-gain control

    Hong, B. S. & Ray, A., Jul 1 2001, In : Applied Mathematics Letters. 14, 5, p. 563-569 7 p.

    Research output: Contribution to journalArticle

    Gain control
    Observer
    Controllers
    Controller
    Hamiltonians
    4 Citations (Scopus)

    On-line condition monitoring of boiling water reactors: A symbolic dynamic data-driven approach

    Alamaniotis, M., Jin, X. & Ray, A., Jan 1 2015, 9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015. American Nuclear Society, p. 722-732 11 p. (9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015; vol. 1).

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

    Boiling water reactors
    Condition monitoring
    Loss of coolant accidents
    Time series
    Finite automata
    1 Citation (Scopus)

    On-line condition monitoring of nuclear systems via symbolic time series analysis

    Rajagopalan, V., Ray, A. & Garcia, H. E., Dec 1 2006, 5th International Topical Meeting on Nuclear Plant Instrumentation Controls, and Human Machine Interface Technology (NPIC and HMIT 2006). p. 323-330 8 p. (5th International Topical Meeting on Nuclear Plant Instrumentation Controls, and Human Machine Interface Technology (NPIC and HMIT 2006); vol. 2006).

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

    Time series analysis
    Condition monitoring
    Pattern recognition
    Experiments
    1 Citation (Scopus)

    Online detection of fatigue failure via symbolic time series analysis

    Gupta, S., Ray, A. & Keller, E., 2005, In : Proceedings of the American Control Conference. 5, p. 3309-3314 6 p., ThC15.2.

    Research output: Contribution to journalArticle

    Automata theory
    Ultrasonic sensors
    Time series analysis
    Fatigue damage
    Fatigue crack propagation
    29 Citations (Scopus)

    Online fatigue damage monitoring by ultrasonic measurements: A symbolic dynamics approach

    Gupta, S., Ray, A. & Keller, E., Jun 1 2007, In : International Journal of Fatigue. 29, 6, p. 1100-1114 15 p.

    Research output: Contribution to journalArticle

    Ultrasonic measurement
    Fatigue Damage
    Symbolic Dynamics
    Fatigue damage
    Monitoring
    6 Citations (Scopus)

    On-line fault diagnosis in a nuclear reactor by sequential testing

    Ray, A., Desai, M. & Deyst, J., 1983, In : IEEE Transactions on Nuclear Science. 30, 3, p. 1850-1855 6 p.

    Research output: Contribution to journalArticle

    nuclear reactors
    Nuclear reactors
    Failure analysis
    sensors
    Sensors
    11 Citations (Scopus)

    On-line Identification of Language Measure Parameters for Discrete Event Supervisory Control

    Wang, X., Ray, A. & Khatkhate, A. M., Dec 1 2003, Proceedings of the IEEE Conference on Decision and Control. p. 6307-6312 6 p. (Proceedings of the IEEE Conference on Decision and Control; vol. 6).

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

    Supervisory Control
    Discrete Event
    Identification (control systems)
    Parameter Identification
    Formal languages
    7 Citations (Scopus)

    On-line identification of language measure parameters for discrete-event supervisory control

    Wang, X., Ray, A. & Khatkhate, A. M., Jun 2005, In : Applied Mathematical Modelling. 29, 6, p. 597-613 17 p.

    Research output: Contribution to journalArticle

    Supervisory Control
    Discrete Event
    Finite automata
    Finite State Automata
    Formal languages
    1 Citation (Scopus)

    Online monitoring of fatigue crack damage for life extending control of aircraft structures

    Sastry, V. V. S. & Ray, A., Jan 1 2001, In : Proceedings of the American Control Conference. 3, p. 2363-2364 2 p.

    Research output: Contribution to journalArticle

    Aircraft
    Controllers
    Monitoring
    Structural loads
    Cyclic loads

    On-line performance management of computer communication networks

    Suk, L. & Ray, A., Dec 1 1990, Proc 5 IEEE Int Symp Intell Control 90. Publ by IEEE, p. 564-569 6 p. (Proc 5 IEEE Int Symp Intell Control 90).

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

    Telecommunication networks
    Conceptual design
    Network management
    Network performance
    Interfaces (computer)
    6 Citations (Scopus)

    ON-LINE POWER PLANT SIGNAL VALIDATION TECHNIQUE UTILIZING PARITY-SPACE REPRESENTATION AND ANALYTIC REDUNDANCY.

    Meijer, C. H., Pasquenza, J. P., Deckert, J. C., Fisher, J. L., Laning, D. B. & Ray, A., Jan 1 1981, In : Electric Power Research Institute (Report) EPRI NP. p. var paging

    Research output: Contribution to journalArticle

    Redundancy
    Power plants
    Sensors
    Steam generators
    Digital computers
    3 Citations (Scopus)

    Online recursive estimation of remaining life using ultrasonic measurements

    Singh, D. S., Gupta, S. & Ray, A., Jul 1 2012, In : Structural Health Monitoring. 11, 4, p. 413-421 9 p.

    Research output: Contribution to journalArticle

    Ultrasonic measurement
    Ultrasonics
    Fatigue
    Ultrasonic sensors
    Stochastic models
    5 Citations (Scopus)

    ON-LINE SIGNAL VALIDATION AND FEEDBACK CONTROL IN A NUCLEAR REACTOR.

    Ray, A., Bernard, J. A. & Lanning, D. D., Dec 1 1983.

    Research output: Contribution to conferencePaper

    Nuclear reactors
    Feedback control
    Sensors
    Display devices
    Cathode ray tubes
    4 Citations (Scopus)

    On modeling of integrated communication and control systems

    Liou, L. W. & Ray, A., Jan 1 1990, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 112, 4, p. 790-794 5 p.

    Research output: Contribution to journalArticle

    telecommunication
    rays
    Communication systems
    Control systems
    time division multiplexing
    power plants
    Power plants

    On the design of discrete-time fixed-order controllers for persistent disturbance rejection

    Chen, J., Lagoa, C. M. & Ray, A., Dec 1 2005, Proceedings of the 16th IFAC World Congress, IFAC 2005. p. 360-365 6 p. (IFAC Proceedings Volumes (IFAC-PapersOnline); vol. 16).

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

    Disturbance rejection
    Controllers
    Transfer functions
    36 Citations (Scopus)

    On the discriminability of keystroke feature vectors used in fixed text keystroke authentication

    Balagani, K. S., Phoha, V. V., Ray, A. & Phoha, S., May 1 2011, In : Pattern Recognition Letters. 32, 7, p. 1070-1080 11 p.

    Research output: Contribution to journalArticle

    Authentication
    Feature extraction
    Agglomeration
    Experiments
    1 Citation (Scopus)
    Formal languages
    State feedback
    17 Citations (Scopus)

    Optimal Control of Regular Languages with Event Disabling Cost

    Fu, J., Ray, A. & Lagoa, C. M., Nov 7 2003, In : Proceedings of the American Control Conference. 2, p. 1691-1695 5 p.

    Research output: Contribution to journalConference article

    Formal languages
    Costs
    Computational complexity
    Polynomials

    Optimal control of robot behavior using language measure

    Wang, X., Ray, A., Lee, P. & Fu, J., Dec 1 2005, Quantitative Measure for Discrete Event Supervisory Control. Springer New York, p. 157-181 25 p.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Robots
    Supervisory personnel
    Finite automata
    Formal languages
    Costs
    9 Citations (Scopus)

    Optimal control of robot behaviour using language measure

    Wang, X., Ray, A., Lee, P. & Fu, J., Dec 1 2004, In : International Journal of Vehicle Autonomous Systems. 2, 3-4, p. 147-167 21 p.

    Research output: Contribution to journalArticle

    Robots
    Formal languages
    Finite automata
    Computational complexity
    Robotics

    Optimal discrete event control of gas turbine engines

    Yasar, M., Fu, J. & Ray, A., Dec 1 2005, Quantitative Measure for Discrete Event Supervisory Control. Springer New York, p. 183-205 23 p.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Gas turbines
    Turbines
    Formal languages
    Supervisory personnel
    Computer systems
    7 Citations (Scopus)

    Optimal discrete event supervisory control of aircraft gas turbine engines

    Fu, J., Yasar, M. & Ray, A., 2004, Proceedings of the 2004 American Control Conference (AAC). Vol. 6. p. 5710-5715 6 p.

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

    Gas turbines
    Turbines
    Aircraft
    Formal languages
    Computer systems

    Optimal partitioning of ultrasonic data for fatigue damage detection

    Singh, D. S., Sarkar, S., Gupta, S. & Ray, A., Sep 29 2011, Proceedings of the 2011 American Control Conference, ACC 2011. p. 798-803 6 p. 5991263. (Proceedings of the American Control Conference).

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

    Damage detection
    Fatigue damage
    Ultrasonics
    Ultrasonic sensors
    Pattern recognition
    2 Citations (Scopus)

    Optimal path-planning under finite memory obstacle dynamics based on probabilistic finite state automata models

    Chattopadhyay, I. & Ray, A., Nov 23 2009, 2009 American Control Conference, ACC 2009. p. 2403-2408 6 p. 5160369. (Proceedings of the American Control Conference).

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

    Finite automata
    Motion planning
    Data storage equipment
    Navigation
    Planning
    1 Citation (Scopus)

    Optimal supervisory control of aircraft propulsion: A discrete event approach

    Yasar, M., Tolani, D. & Ray, A., 2005, In : Proceedings of the American Control Conference. 3, p. 1503-1508 6 p., WeC11.2.

    Research output: Contribution to journalArticle

    Aircraft propulsion
    Engines
    Controllers
    Supervisory personnel
    Condition monitoring
    24 Citations (Scopus)

    Optimal supervisory control of finite state automata

    Ray, A., Fu, J. & Lagoa, C., Aug 15 2004, In : International Journal of Control. 77, 12, p. 1083-1100 18 p.

    Research output: Contribution to journalArticle

    Finite automata
    Computational complexity
    Dynamical systems
    Polynomials
    Costs

    Optimal supervisory control of regular languages

    Ray, A., Fu, J. & Lagoa, C., Oct 2004, In : Demonstratio Mathematica. 37, 4, p. 991-1013 23 p.

    Research output: Contribution to journalArticle

    Supervisory Control
    Regular Languages
    Finite State Automata
    Optimal Control
    Optimal Policy

    Optimal supervisory control of regular languages

    Ray, A., Fu, J. & Lagoa, C., Dec 1 2005, Quantitative Measure for Discrete Event Supervisory Control. Springer New York, p. 39-69 31 p.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Formal languages
    Finite automata
    Computational complexity
    Dynamical systems
    Polynomials
    16 Citations (Scopus)

    Optimization of symbolic feature extraction for pattern classification

    Sarkar, S., Mukherjee, K., Jin, X., Singh, D. S. & Ray, A., Mar 1 2012, In : Signal Processing. 92, 3, p. 625-635 11 p.

    Research output: Contribution to journalArticle

    Pattern recognition
    Feature extraction
    Time series
    Fatigue damage
    Identification (control systems)

    Optimization of time-series data partitioning for parameter identification

    Sarkar, S., Mukherjee, K., Jin, X. & Ray, A., Dec 1 2010, ASME 2010 Dynamic Systems and Control Conference, DSCC2010. p. 867-874 8 p. (ASME 2010 Dynamic Systems and Control Conference, DSCC2010; vol. 1).

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

    Time series
    Identification (control systems)
    Nonlinear dynamical systems
    Finite automata
    Pattern recognition
    129 Citations (Scopus)

    Output feedback control under randomly varying distributed delays

    Ray, A., Jan 1 1994, In : Journal of Guidance, Control, and Dynamics. 17, 4, p. 701-711 11 p.

    Research output: Contribution to journalArticle

    Output Feedback Control
    Distributed Delay
    feedback control
    Feedback control
    control system
    6 Citations (Scopus)

    Output feedback linear parameter varying (LPV) L2-gain control

    Hong, B. S., Ray, A. & Yang, V., Sep 1 2003, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 125, 3, p. 485-489 5 p.

    Research output: Contribution to journalArticle

    Gain control
    Feedback
    output
    Feedback control
    Experiments
    3 Citations (Scopus)

    Parameter-dependent L2-gain control synthesis

    Hong, B. S., Ray, A. & Yang, V., 2000, In : Proceedings of the American Control Conference. 5, p. 3697-3701 5 p.

    Research output: Contribution to journalArticle

    Gain control
    Game theory
    Feedback control
    Scheduling
    Control systems
    6 Citations (Scopus)

    Path planning in GPS-denied environments: A collective intelligence approach

    Chattopadhyay, P., Jha, D. K., Sarkar, S. & Ray, A., Jul 28 2015, ACC 2015 - 2015 American Control Conference. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-July. p. 3082-3087 6 p. 7171806

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

    Motion planning
    Sensor networks
    Global positioning system
    Wireless networks
    Target tracking
    6 Citations (Scopus)

    Path planning in GPS-denied environments via collective intelligence of distributed sensor networks

    Jha, D. K., Chattopadhyay, P., Sarkar, S. & Ray, A., May 3 2016, In : International Journal of Control. 89, 5, p. 984-999 16 p.

    Research output: Contribution to journalArticle

    Motion planning
    Sensor networks
    Global positioning system
    Wireless networks
    Robots
    1 Citation (Scopus)

    Pattern Classification in symbolic streams via semantic annihilation of information

    Chattopadhyay, I., Wen, Y. & Ray, A., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 492-497 6 p. 5530857. (Proceedings of the 2010 American Control Conference, ACC 2010).

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

    Finite automata
    Pattern recognition
    Semantics
    White noise
    Experiments
    3 Citations (Scopus)

    Pattern identification in complex systems: A statistical thermodynamic approach

    Gupta, S., Srivastav, A. & Ray, A., Nov 28 2006.

    Research output: Contribution to conferencePaper

    Statistical mechanics
    Large scale systems
    Identification (control systems)
    Information theory
    Fatigue damage
    30 Citations (Scopus)

    Pattern identification in dynamical systems via symbolic time series analysis

    Rajagopalan, V., Ray, A., Samsi, R. & Mayer, J., Nov 1 2007, In : Pattern Recognition. 40, 11, p. 2897-2907 11 p.

    Research output: Contribution to journalArticle

    Time series analysis
    Finite automata
    Time series
    Dynamical systems
    Automata theory