Publications

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2020

Journal

• Bhattacharjee, D., Subbarao, K., “Set-Membership Filtering-Based Leader-Follower Synchronization of Discrete-time Linear Multi-Agent Systems”,  ASME Journal of Dynamic Systems, Measurements and Control, 2020 DOI
• Bhattacharjee, D., Subbarao, K., “Extremum Seeking Control with Attenuated Steady-State Oscillations”, Automatica, 2020 DOI (arXiv)
• Bhattacharjee, D., Subbarao, K., “A Theoretical Explanation for Unique Choice of Strouhal Numbers for Avian Flight”, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2020, DOI
• Y. Kartal, K. Subbarao, N. Gans, A. Dogan, F. Lewis (2020) Distributed backstepping based control ofmultiple UAV formation flight subject to time delays, IET Control Theory and Applications 14 (12), 1628-1638 DOI

Conference

• R. Bhusal, K. Subbarao, Nonlinear State Estimation of Re-entry Vehicle Using Polynomial Chaos-Based Ensemble Filtering, AAS/AIAA Astrodynamics Specialists Conference, AAS-20-578, August 2020
• K. Balachandran, K. Subbarao, Optimal Trajectory Control of a Space Shuttle like Re-entry Vehicle entering Triton, AAS/AIAA Astrodynamics Specialists Conference AAS 20-771, August 2020
• R. Bhusal, B. Taner, K. Subbarao, On the Phase Margin of Networked Dynamical Systems and Fabricated Attacks of an Intruder, 2020 American Control Conference (ACC), 3279-3284, July 2020
• E. Orhan, K. Subbarao, A Robust Controller for Transition between Hover and Forward Flight for Hybrid Fixed Wing-Multicopters, AIAA SciTech, AIAA-2020-1237, January 6-10 2020, Orlando, FL
• D. Bhattacharjee, A. Chakravarthy, K. Subbarao, Nonlinear Model Predictive Control based Missile Guidance for Target Interception, AIAA SciTech, AIAA-2020-0865, January 6-10 2020, Orlando, FL
• D. Bhattacharjee, K. Subbarao, Robust Control Strategy for Quadcopters using Sliding Mode Control and Model Predictive Control, AIAA SciTech, AIAA-2020-2071, January 6-10 2020, Orlando, FL
• R. Bhusal, B. Taner, K. Subbarao, Performance Analysis of a Team of Highly Capable Individual Unmanned Aerial Systems, AIAA SciTech, AIAA-2020-2070, January 6-10 2020, Orlando, FL
• B. Taner, R. Bhusal, K. Subbarao, A Nested Robust Controller Design for Interconnected Vehicles, AIAA SciTech, AIAA-2020-0602, January 6-10 2020, Orlando, FL

2019

Journal

• A. Godbole, K. Subbarao (2019) Nonlinear Control of Unmanned Aerial Vehicles with Cable Suspended Payloads, Aerospace Science and Technology (Elsevier), Volume 93, October 2019 DOI
• R. Bhusal, K. Subbarao (2019) Generalized Polynomial Chaos Expansion Approach for Uncertainty Quantification in Small Satellite Orbital Debris Problems, The Journal of Astronautical Sciences , (Springer), 67, pages 225–253(2020) DOI
• R. Bhusal, K. Subbarao (2019) Uncertainty Quantification Using Generalized Polynomial Chaos Expansion for Nonlinear Dynamical Systems With Mixed State and Parameter Uncertainties, ASME Journal of Computational Nonlinear Dynamics Vol. 14, Issue 2, 021011 (14 pages), DOI
• A. Godbole, K. Subbarao, A. Dogan, B. Huff (2019) Semi-analytical range and endurance computation of battery-powered multi-copter unmanned aerial systems under steady wind conditions Journal of Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering , (SAGE) DOI
• P. Quillen, J. Munoz, K. Subbarao (2019) Path Planning to a Reachable State Using Minimum Control Effort based Navigation Functions, The Journal of Astronautical Sciences , (Springer) DOI

Conference

• K. Balachandran, K. Subbarao, Computing surface brightness integrals of artificial Space objects with axisymmetric bodies using photometric light curves, IAC-19-A6.1.7, 70th International Astronautical Congress (IAC), Washington D. C., United States, 21-25 October 2019.
• R. Bhusal, K. Subbarao, Sensitivity Analysis of Cooperating Multi-Agent Systems with Uncertain Connection Weights, American Control Conference, July 8-11 2019, Philadelphia, PA
• D. Bhattacharjee, A. Dogan, K. Subbarao, Comparison of Open-Loop Nonlinear Simulations of Avian Scale Flapping Flight using Dynamic Models of Varying Fidelity, AIAA SciTech, (AIAA-2019-0827): January 8-11, 2019, San Diego, CA
• D. Bhattacharjee, K. Subbarao, K. Bhaganagar, Extremum Seeking and Adaptive Sampling Approaches for Plume Source Estimation using Unmanned Aerial Vehicles, AIAA SciTech, (AIAA-2019-1565), January 8-11, 2019, San Diego, CA
• A. Joshi, K. Subbarao, Uncertainty Quantification and Analysis of Dynamical Systems with Invariants, AAS/AIAA Space-Flight Mechanics Meeting, Maui, HI, AAS-19-368, January, 2019.

2018

Journal

• Na Wang, Chatabush Roongnat, Jay M. Rosenberger, P.K. Menon, Kamesh Subbarao, Prasenjit Sengupta, Monish D Tandale, “Study of time-dependent queuing models of the national airspace system”, Elsevier, Computers and Industrial Engineering, vol 117, pp 108-120, 2018
• G. Atmeh, K. Subbarao, “A Neuro-Dynamic Walking Engine for Humanoid Robots”, Robotics and Autonomous Systems (Elsevier Journal), ISSN: 0921-8890, Vol: 110, Page: 124-138, 2018.
• P. Quillen, K. Subbarao, “Minimum Control Effort Based Path Planning and Nonlinear Guidance for Autonomous Mobile Robots”, International Journal of Advanced Robotic Systems (Sage Publications) , Volume 15, issue 6, November, 2018.
• K. Subbarao, L. Henderson, “Observability and Sensitivity Analysis of Lightcurve Measurement Models for use in Space Situational Awareness”, Journal of Inverse Problems in Science and Engineering (Taylor and Francis, UK), DOI: 10.1080/17415977.2018.1554655

Conference

• K. Balachandran, K. Subbarao, “Estimating Sidereal rotation period of Resident Space Objects using non-uniformly sampled light curves”, Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference, Maui, Hawaii, September 11-14, 2018. Paper ID: 18AB00201
• M. McDonald, K. Subbarao, “Sensor Tasking for Satellite Tracking Utilizing Weighted Mutual Information Maximization”, AAS/AIAA Astrodynamics Specialists Conference, Paper No: AAS-18-425, Snowbird, UT, August 2018.
• R. Bhusal, K. Subbarao, “Uncertainty Quantification Using Non-Intrusive Generalized Polynomial Chaos Expansion for Orbital Debris Studies”, AAS/AIAA Astrodynamics Specialists Conference, Paper No: AAS-18-438, Snowbird, UT, August 2018.
• A. Johnson, K. Subbarao, K. Johnson, “Error Growth of Target States Utilizing a Swarm of Agents in a GPS Denied Area”, IEEE Aerospace Conference, Big Sky Montana, USA, March 2018
• A. Godbole, K. Subbarao, A. Dogan, B. Huff, “Range and Endurance Characterization of a Quadcopter Subject to Steady Wind”, 2018 International Conference on Unmanned Aircraft Systems, June 12-15, 2018, Dallas, TX, USA
• V. N. V. Murali, D. Baman, K. Subbarao, “Nonlinear Guidance Laws for Trajectory Tracking Over a Mobile Communication Network Applied to Unmanned Ground Vehicles”, 14th International Conference on Control and Automation (ICCA), IEEE, June 12-15, 2018, Anchorage, Alaska, USA
• A. Godbole, K. Subbarao, “Mathematical Modeling and Control of an Unmanned Aerial System with a Cable Suspended Payload”, 14th International Conference on Control and Automation (ICCA), IEEE, June 12-15, 2018, Anchorage, Alaska, USA

2017

Journal

• Ru, P., Subbarao, K., “Nonlinear Model Predictive Control for Unmanned Aerial Vehicles”, Aerospace 2017, 4(2), 31; doi:10.3390/aerospace4020031
• Copp, B., Subbarao, K., “Augmenting Wireless Time Of Arrival Positioning with Terrain Elevation Measurements for Navigation”, AIAA Journal of Guidance, Control, and Dynamics , Vol. 40, No. 7 (2017) 1726-1738, 10.2514/1.G002074
• Pavan Nuthi, Kamesh Subbarao, “Computational Adaptive Optimal Control of Spacecraft Attitude Dynamics with Inertia Matrix Identification”, AIAA Journal of Guidance, Control and Dynamics , Vol. 40, No. 5 (2017), pp. 1258-1262.
• Laura Henderson, Kamesh Subbarao, ” `Inverse Crime’ and Model Integrity in Lightcurve Inversion applied to unresolved Space Object Identification”, The Journal of the Astronautical Sciences, Vol 64, Issue 4 (2017) pp. 399-413

Conference

• Ru, P., Subbarao, K., “Cooperative Control of Unmanned Aerial Vehicles based on Nonlinear Model Predictive Control”, AIAA SciTech, January 2017, Grapevine, TX, USA
• Ru, P., Subbarao, K., “Cooperative Estimation of Moving Target Position Using Unmanned Aerial Vehicles”, AIAA SciTech, January 2017, Grapevine, TX, USA
• Nair, S., Subbarao, K., “Attitude Control of Spacecraft Formations subject to Distributed Communication Delays”, 27th AAS/AIAA Space Flight Mechanics Meeting, February 2017, San Antonio, TX, USA
• Godbole, A., Murali, V.N.V., Quillen, P., Subbarao, K., “Optimal Trajectory Design and Control of a Planetary Exploration Rover”, 27th AAS/AIAA Space Flight Mechanics Meeting, February 2017, San Antonio, TX, USA

2016

Journal

• Kamesh Subbarao, Pavan Nuthi, Ghassan Atmeh, “Reinforcement Learning based Computational Adaptive Optimal Control and System Identification for Linear Systems”, Annual Reviews in Control 42C (2016) pp. 319-331, DOI information: 10.1016/j.arcontrol.2016.09.021
• Kamesh Subbarao, Mousumi Ahmed, “Target Tracking using Multiple Unmanned Aerial Vehicles: Graph Theoretic Nonlinear Control Approach”, Journal of Aerospace Engineering (Proceedings of the Institution of Mechanical Engineers ‘G’) Volume: 231 issue: 3, page(s): 570-586, Article first published April 2016
• Mousumi Ahmed, Kamesh Subbarao, “Target Tracking in 3-D Using Estimation Based Nonlinear Control Laws for UAVs”, Aerospace , 2016, 3(1), 5; doi:10.3390/aerospace3010005
• Ghassan Atmeh, Kamesh Subbarao, “Guidance, Navigation and Control of Unmanned Airships under Time-Varying Wind for Extended Surveillance”, Aerospace , 2016, 3(1), 8; doi:10.3390/aerospace3010008

Conference

• Hariharapura Ramesh, S., Subbarao, K., “Autonomous Carrier Landing System for the A/V-8B Harrier like UAV”, In Proceedings of the 4th International Conference on Advances in Control and Optimization of Dynamical Systems, NIT Tiruchirapalli, India, February 1-5, 2016
• Atmeh, G., Subbarao, K., “A Dynamic Neural Network with Feedback for Trajectory Generation”, In Proceedings of the 4th International Conference on Advances in Control and Optimization of Dynamical Systems, NIT Tiruchirapalli, India, February 1-5, 2016
• Subbarao, K., Nuthi, P., “Computational Adaptive Optimal Control of Spacecraft Attitude Dynamics with Inertia Matrix Identification”, American Control Conference, Boston, MA, July 2016
• Quillen, P., Subbarao, K., Munoz, J., “Guidance and Control of a Mobile Robot via Numerical Navigation Functions and Backstepping for Planetary Exploration Missions “, AIAA SPACE, September, 2016, Ca, USA

2015

Journal

• Nuthi, P., Subbarao, K., “Implementation and Testing of Adaptive Augmentation Techniques on a 2DOF Helicopter”, ASME Journal of Dynamic Systems, Measurement and Control, 2015; 137(6):0645010645016; DS131520; doi: 10.1115/1.4029273
• Brodecki, M., Subbarao, K., “In-Flight Sweet Spot Estimation for Autonomous Formation Flight”, AIAA Journal of Guidance, Control and Dynamics, Vol. 38, No. 6 (2015), pp. 10831096. doi:10.2514/1.G000220
• Brian Copp and Kamesh Subbarao, “Nonlinear Adaptive Filtering in Terrain Referenced Navigation”, IEEE Transactions in Aerospace Electronics and Systems , vol. 51, no. 4, pp. 3461-3469, Oct. 2015; doi:10.1109/TAES.2015.140826

Conference

• Kamesh Subbarao, Carlos Tule, Pengkai Ru, “Nonlinear Model Predictive Control Trajectory Tracking Applied to Unmanned Aerial Vehicles ”, AIAA Atmospheric Flight Mechanics Conference, Aviation Forum, Dallas, TX, June 2015.
• Alok Rege, Brian Dennis, Kamesh Subbarao, “Force Production by Wing Flapping: The Role of Stroke Angle of Attack and Local Reynolds Number”, AIAA Atmospheric Flight Mechanics Conference, Aviation Forum, Dallas, TX, June 2015.
• Brian Copp, Kamesh Subbarao, “Adaptive Estimation of Altitude Bias in Terrain Referenced Navigation”, ION GNSS+ Conference, Tampa, FL, September 2015
• Tracie Perez, Kamesh Subbarao, “A Miniature Satellite Mission Case Study: Observation of Titan’s Dynamic Ionosphere ”, AIAA Space Forum, Pasadena CA, September 2015.
• Brian Copp, Kamesh Subbarao, “Nonlinear Adaptive Filtering in Terrain-Referenced Navigation”, American Control Conference, Chicago, IL, July 2015

2014

Conference

• Ghassan M. Atmeh, Isura Ranatunga, Dan O. Popa, Kamesh Subbarao, Frank Lewis, and Patrick Rowe, “Implementation of an Adaptive, Model Free, Learning Controller on the Atlas Robot”, American Control Conference, Portland, OR, June 2014.
• Ghassan Atmeh, Isura Ranatunga, Dan Popa, Kamesh Subbarao, “Indoor Quadrotor State Estimation using Visual Markers”, The 7th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA), May 27-30, 2014, Rhodes, Greece.
• Nuthi, P., and Subbarao, K., “Computation of Safe Sets for Model-Free Dynamical Systems: Aircraft Longitudinal Dynamics”, AIAA Atmospheric Flight Mechanics Conference, AIAA 2014-0895, AIAA SciTech 2014, National Harbor, MD.
• Nuthi, P., and Subbarao, K., “Autonomous Vertical Landing on a Marine Vessel”, AIAA Atmospheric Flight Mechanics Conference, AIAA 2014-0895, AIAA SciTech 2014, National Harbor, MD.
• Rege A., Subbarao K., and Dennis B., “Nonlinear Dynamics of Flapping Wing MAV using Cycle-Averaged Force Coefficients”, AIAA Atmospheric Flight Mechanics Conference, AIAA 2014-0895, AIAA SciTech 2014, National Harbor, MD.
• Henderson, L., and Subbarao, K., “Inverse Crime” and Model Integrity in Unresolved Space Object Identification”, Space-flight Mechanics Meeting, American Astronautical Society, AAS-14-205, Santa Fe, NM, January 2014.

2013

Conference

• M. Brodecki, K. Subbarao, Q. P. Chu, “Emergent Behavior of Multi-Vehicle Formations Using Extremum Seeking”, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013, 10.2514/6.2013-1033
• M. Brodecki, K. Subbarao, Q. P. Chu, “Formation Flight Control System for In-Flight Sweet Spot Estimation”, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013, 10.2514/6.2013-1037
• Rege, A., Dennis, B., Subbarao, K., “Parametric Study on Wing Flapping Path of a Micro Air Vehicle Using Computational Techniques”, 51st AIAA Aerospace Sciences Meeting, 7-10 January 2013, Grapevine, TX, USA, AIAA~2013-0953.
• Rege A., Dennis B., and Subbarao K., “Sensitivity Analysis of the Factors Affecting Force Generation By Wing Flapping Motion”, ASME International Mechanical Engineering Congress and Exposition, San Diego, CA, 2013.

2012

Journal

• Subbarao, K., Ahmed, M., “Nonlinear Guidance and Control Laws for 3-D Target Tracking applied to Unmanned Aerial Vehicles” ASCE Journal of Aerospace Engineering,(doi: 10.1061/(ASCE)AS.1943-5525.0000275), 2012.

Conference

• Rege, A., Subbarao, K., Dennis, B., “Open Loop Simulation of the Nonlinear Dynamics of a Flapping Wing Micro Air Vehicle”, Proc. of AIAA Guidance, Navigation and Control Conference, AIAA 2012-5025, Minneapolis, MN 2012 (doi: 10.2514/6.2012-5025) .
• Atmeh, G., Subbarao, K. , 2012, “Optimal Control of an Unmanned Lighter-Than-Air Vehicle Through Way-Point Navigation”, ASME International Mechanical Engineering Congress and Exposition, Houston, TX, November, 2012.
• Ahmed, M., Subbarao, K., “Estimation based cooperative guidance controller for 3D target tracking with multiple UAVs”, Proc. of American Control Conference, June, 2012, pages 6035-6040
• Henderson, L., Goyal, P., Subbarao, K., “Inverse Problem Formulation Coupled with Unscented Kalman Filtering for State and Shape Estimation of Space Objects ” American Astronautical Society Space Flight Mechanics Meeting, February 2012, AAS 12-115
• Goyal, P., Henderson, L., Subbarao, K., “Analysis and Estimation using Unscented Kalman Filter for Space Objects in the Lower Earth Orbit using Astrometric and Photometric Measurements ” Second International Conference on

• Advances in Control and Optimization of Dynamical Systems (ACODS) -2012”, February 2012, Paper ID 567
• Mehta, A., Subbarao K., “Vision based Estimation using the Unscented Kalman Filter for Autonomous Rendezvous of Spacecraft”, Second International Conference on

• Advances in Control and Optimization of Dynamical Systems (ACODS) -2012”, February 2012, Paper ID 531

2011

Book Chapters

• B. Obradovic and K. Subbarao, “Modeling and Simulation to Study Flight Dynamics of Morphing Wing Aircraft”, chapter submitted to John Valasek (editor), Wiley Publishers.
• A. Das, F. L. Lewis, and K. Subbarao, “Sliding Mode Approach to Control Quadrotor Using Dynamic Inversion”,Robust Control, Book 3, ed. A. Lazinica InTech publishing, Rijecka, Croatia, 2011.

Journal

• Obradovic, B., Subbarao, K., “Modeling of Dynamic Loading of Morphing Wing Aircraft”, AIAA Journal of Aircraft, Volume 48, Number 2, March-April 2011, pages 391-402.
• Obradovic, B., Subbarao, K., “Modeling of Flight Dynamics of Morphing Wing Aircraft”, AIAA Journal of Aircraft, Volume 48, Number 2, March-April 2011, pages 424-435.

Conference

• Subbarao, K., Ahmed, M., “3D Target Tracking by UAVs subject to Measurement Uncertainties”, IEEE Multi-conference on Systems and Control, Denver, CO, September 28-30, 2011
• Petrich, J., Subbarao, K., “On-Board Wind Speed Estimation for UAVs”, AIAA Guidance, Navigation and Control Conference, Portland, OR, August 8-11, 2011, Paper Number AIAA-2011-6223
• Obradovic, B., Subbarao, K., “Design and Simulation of a Morphing Wing Controller with Actuator Loading Penalization”, AIAA Atmospheric Flight Mechanics Conference, Portland, OR, August 8-11, 2011, AIAA-2011-6390
• Bhatia, D., Subbarao, K., “Attitude Formation Control of Multiple Vehicles subject to Communication Constraints”, AIAA Infotech Conference, St. Louis, Missouri, March 29-31, 2011
• Ogunleye, I., Subbarao, K., “Stable Reference Trajectory Modification for Handling Actuator Saturation in Control Systems”,AIAA Infotech Conference, St. Louis, Missouri, March 29-31, 2011
• deVries, E., Subbarao, K., “Cooperative Control of Swarms of Unmanned Aerial Vehicles”, 49th AIAA Aerospace Sciences Meeting and Conference, Orlando, FL, January 04-07, 2011
• Subbarao, K., “Nonlinear Guidance and Information Consensus for UAVs with Time Varying Connection Topologies”, 49th AIAA Aerospace Sciences Meeting and Conference, Orlando, FL, January 04-07, 2011

2010

Journal

• Tadesse, Y. T., Subbarao, K., Priya, S., “Realizing a humanoid neck with serial chain four bar Mechanism”, Journal of Intelligent Material Systems and Structures. (DOI: 10.1177/1045389X10378775) (pdf)

Conference

• deVries, E., Subbarao, K., “Backstepping based Nested Multi-Loop Control Laws for a Quadrotor”, 11th International Conference on Control, Automation, Robotics and Vision, ICARCV 2010, Singapore, December 07-10, 2010
• Ahmed, M., Subbarao, K., “Nonlinear 3-D Trajectory Guidance for Unmanned Aerial Vehicles”, 11th International Conference on Control, Automation, Robotics and Vision, ICARCV 2010, Singapore, December 07-10, 2010
• Bhatia, D., Subbarao, K., “A Constrained Dynamical Systems Approach for Attitude Consensus of Multiple Rigid Bodies”, 11th International Conference on Control, Automation, Robotics and Vision, ICARCV 2010, Singapore, December 07-10, 2010
• Obradovic, B., Subbarao, K., “Modeling of Dynamic Loading of Morphing Wing Aircraft”, AIAA Atmospheric Flight Mechanics Conference, Toronto, CA, August 2-5, 2010

2009

Journal

• Subbarao, K., Goss, J., “Combined Magnetohydrodynamic and Geometric Optimization of a Hypersonic Inlet”, International Journal of Aerospace Engineering, Hindawi Publishing Corporation, Volume 2009 (2009), Article ID 793647, 12 pages.
• Das, A., Lewis F. L, Subbarao K., “Backstepping Approach for Controlling a Quadrotor using Neural Networks”, Journal of Intelligent & Robotic Systems, Springer, Volume 56, Numbers 1-2, pages 127-151, September, 2009
• Subbarao, K., Muralidhar P., “State observer for linear systems with piece-wise constant output delays”, IET Control Theory & Applications (formerly IEE Proceedings Control Theory & Applications), Volume 3, Issue 8, pages 1017-1022, August 2009.
• Subbarao, K., Shippey, B, “Low Thrust Earth Mars Trajectory Design using Pseudo-Spectral Methods and Genetic Algorithms”, AIAA Journal of Guidance, Control and Dynamics, Vol. 32, No. 4, pages 1396-1401, July–August 2009
• Subbarao, K., Vemuri, A., “Extrinsic Curvature based Fault Isolation for MIMO Systems”, Trans. Of the Inst. Of Measurement and Control (Special Issue on Intelligent Fault Diagnosis and Prognosis for Engineering Systems), Volume 31 Issue 4, July 2009.
• Gadewadikar, J., Lewis, F. L., Subbarao, K., Chen, B., Peng, K., “H-Infinity Static Output-Feedback Control for Rotorcraft”, Journal of Intelligent & Robotic Systems, Springer, Volume 54, Number 4, pages 629-646, April, 2009
• Das, A., Subbarao K., Lewis F. L, “Dynamic Inversion with Zero-Dynamics Stabilization for Quadrotor Control”, IET Control Theory & Applications (formerly IEE Proceedings Control Theory & Applications), Volume 3, Issue 3, pages 303-314, March 2009.

Conference

• Obradovic, B., Subbarao, K., “Modeling and Simulation to Study Flight Dynamics of a Morphable Wing Aircraft”, AIAA Modeling and Simulation Technologies Conference, 10 – 13 August 2009, Chicago, Illinois, Paper No. AIAA-2009-6240.
• Parikh, K. K., Dogan, A., Subbarao, K., Huff B., Reyes, A. R., “CAE Tools for Modeling Inertia and Aerodynamic Properties of an R/C Airplane”, AIAA Modeling and Simulation Technologies Conference, 10 – 13 August 2009, Chicago, Illinois, Paper No. AIAA-2009-6043.
• Menon, P.K., Tandale, M.D., Kim, J., Sengupta, P., Rosenberger, J., Subbarao, K., “Stochastic air tra?c ?ow models of the US national airspace system” IISc Centenary International Conference and Exhibition on Aerospace Engineering, Bangalore, India Invited Paper, May 2009.
• Subbarao, K., Supekar, A., Lawrence, K., “Investigation of Morphable Wing Structures for Unmanned Aerial Vehicle Performance Augmentation”, AIAA Infotech@Aerospace Conference, Seattle, WA, April 2009, Paper No. AIAA-2009-1829.

2008

Book Chapters

• Das, A., Lewis, F., L., and Subbarao, K., “Back-stepping control of Quadrotor, a Higher Order Like Neural Network Approach”, submitted as a book chapter in Artificial Higher Order Neural Networks for Computer Science and Engineering: Trends for Emerging Applications, IGI Global, Dr. Ming Zhang (Editor).
• Das, A., Lewis, F., L., and Subbarao, K., “Quadrotor Control by Dynamic Inversion with Zero-dynamics Stabilization”, Chapter in Computational Intelligence, Control and Computer Vision in Robotics and Automation. Bidyadhar Subudhi (Editor), Narosa Publishing House, New Delhi.
• Dang, P., Lewis, F. L., Subbarao, K., Stephanou, H. E., “Optimal Placement of Microactuators for Distributed Control using Neural Networks”, Chapter in Recent Advances in Control Systems, Robotics, and Automation, 2 ed., edited by S. Pennacchio, pp. 29-36, International SAR, Palermo, Italy, 2008.

Journal

• Subbarao, K., Welsh, S. J., “Nonlinear Control of Motion Synchronization for Satellite Proximity Operations,” AIAA Journal of Guidance, Control & Dynamics. Vol. 31, No. 5, September – October, 2008.
• Gadewadikar, J., Lewis F. L., Subbarao, K., Chen, B., “Design of H-Infinity Command & Control Loops for Unmanned Aerial Vehicles using Static Output Feedback”, AIAA Journal of Guidance, Control and Dynamics. Vol. 31, No. 4, pp. 1093-1102, July-August, 2008.
• Dang, P., Lewis, F. L., Subbarao, K., Stephanou, H. E., “Optimal Placement of Microactuators for Distributed Control using Neural Networks”, Int. Journal of Factory Automation, Robotics, and Soft Computing, Vol. 1, pp. 27-34, Jan. 2008.

Conference

• Tandale, M. D., Sengupta, P., Menon, P. K., Cheng, V. H., J, Rosenberger, J., Subbarao K., “Queuing Network Models of the National Airspace System”, The 26th Congress of International Council of the Aeronautical Science Including The 8th AIAA Aviation Technology, Integration and Operations, Anchorage, Alaska, USA, September 14-19, 2008.
• Kim, J., Palaniappan, K., Menon, P. K., Nag, M., Subbarao K., “Trajectory Uncertainty Modeling for Queuing Analysis of the National Airspace System”, The 26th Congress of International Council of the Aeronautical Science Including The 8th AIAA Aviation Technology, Integration and Operations, Anchorage, Alaska, USA, September 14-19, 2008.
• Goss, J. D., and Subbarao, K., “Inlet Shape Optimization Based on POD Model Reduction of Euler Equations”, 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Victoria, British Columbia, Canada, September 10-12, 2008.
• Das, F. Lewis and S. Subbarao, “Dynamic Neural Network based Robust Backstepping Control approach for Quadrotors”, Proceedings of AIAA Guidance, Navigation and Control Conference and Exhibit, 18-21 August, 2008, Honolulu, Hawaii.
• Das, A., Subbarao, K., Lewis, F. L., “Dynamic Inversion of Quadrotor with Zero-Dynamics Stabilization”, IEEE Multi-conference on Systems and Control, San Antonio, TX, USA, September 3-5, 2008.
• Shippey, B., and Subbarao, K., “Trajectory Design using Collocation and Genetic Algorithms: Aircraft Turning Maneuver”, IEEE Multi-conference on Systems and Control, San Antonio, TX, USA, September 3-5, 2008.
• Dang, P., Lewis, F. L, Subbarao, K., Stephanou, H., “Shape Control of Flexible Structure using Potential Field Method”, IEEE Multi-conference on Systems and Control, San Antonio, TX, USA, September 3-5, 2008.
• Subbarao, K., and Muralidhar, P., “A State Observer for LTI Systems with Delayed Outputs: Time-Varying Delay”, Proceedings of the American Control Conference, Seattle, Washington, USA, June 11-13, 2008.
• P. Singla and K. Subbarao, “Stable Adaptive Reference Trajectory Modification for Saturated Control Applications,” Proceedings of 2008 American Control Conference, Seattle, Washington, USA, June 11 – 13, 2008.
• Goss, J. D., and Subbarao, K., “Adjoint Methods for Inlet Shape Optimization”, AIAA 2008-4381, AIAA 38th Fluid Dynamics Conference and Exhibit, June 23-26, 2008, Seattle, Washington, USA.

2007

Journal

• Singla P., Subbarao K., Junkins J. L., “Direction Dependent Learning Approach for Radial Basis Function Networks,” IEEE Transactions of Neural Networks. Vol. 18, pp. 203-222, January 2007.

Conference

• Matusewicz, J., Subbarao, K., Frisbee, J., “Uncertainty Characterization of Orbital Debris using Simulated Space Surveillance Network Measurements”, AAS 07-388, AAS/AIAA Astrodynamics Specialist Conference, Mackinac Island, MI, August 2007.
• Matusewicz, J., Subbarao, K., Frisbee, J., “Uncertainty Characterization of Orbital Debris using the Extended Kalman Filter”, AAS 07-389, AAS/AIAA Astrodynamics Specialist Conference, Mackinac Island, MI, August 2007.
• Vibheeshanan, V. J, Subbarao, K., Huff, B., “A Sensor Calibration Methodology for Evidence Theoretic Unmanned Ground Vehicle Localization”, IEEE International Symposium on Computational Intelligence in Robotics and Automation,t Jacksonville, Florida, USA, June 2007.
• Vibheeshanan, V. J, Subbarao, K., Huff, B. “Eta-Filter: An Evidence Theoretic Approach to Unmanned Ground Vehicle Localization”, (BEST PAPER AWARD) , IEEE International Symposium on Computational Intelligence in Robotics and Automation, Jacksonville, Florida, USA, June 2007.
• P. L. Narasimha, Z. Yue, K. Subbarao, M. T. Manry, P. Topiwala, “Real-Time Object-Based Image Registration Using Improved MRAN”, Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2007. Edited by Dasarathy, Belur V. Proceedings of the SPIE, Volume 6571, pp. 657103 (2007).
• J. Gadewadikar, F. L. Lewis, K. Subbarao, B. Chen, “Design of H-Infinity Command and Control Loops for Unmanned Aerial Vehicles Using Static Output-Feedback”, Proceedings of the 46th IEEE Conference on Decision and Control, New Orleans, LA, USA, December 12-14, 2007, pages 5395-5400.
• J. Gadewadikar, F. L. Lewis, K. Subbarao, B. Chen, “Attitude Control System Design for Unmanned Aerial Vehicles using H-Infinity and Loop-Shaping Methods”, Proceedings of the IEEE International Conference on Control and Automation 2007, Guangzhou, China, Page(s): 1174-1179.
• K. Subbarao, A. Vemuri, “Fault Isolation using Extrinsic Curvature for Multi-Input-Multi-Output Systems with Nonlinear Fault Models”, Proceedings of the American Control Conference, 2007, New York, USA.

2006

Journal

• Singla P., Subbarao K., Junkins J. L., “Adaptive Output Feedback Control for Spacecraft Rendezvous and Docking Under Measurement Uncertainty,” AIAA Journal of Guidance, Control and Dynamics, Vol. 29, No. 4, pp. 892 – 898, July – August 2006.

Conference

• A. Vemuri, K. Subbarao, “Fault Isolation using Extrinsic Curvature of Nonlinear Fault Models”, accepted, 9th International Conference on Control, Automation, Robotics and Vision (IEEE), Singapore, December 5-8, 2006, Singapore.
• J. Gadewadikar, K. Subbarao, F. L. Lewis, B. Chen, K. Peng, “H-Infinity Static Output-Feedback Control for Rotorcraft”, AIAA-2006-6238, AIAA Guidance, Navigation and Control Conference and Exhibit, Keystone, CO, Aug., 2006.
• Webb, M.B. and Subbarao, K., “On the Dynamic Aeroelastic Stability of Morphable Wing Structures,” 14th AIAA/ASME/AHS Adaptive Structures Conference, Newport, Rhode Island, May, 2006.

2005

Journal

• M. B. Webb and Kamesh Subbarao, “Mathematical Modeling for Modal Computations Concerning a Morphable Wing,” AIAA Journal of Aircraft, Vol. 43, No. 3, pp. 849-853, March 2005.
• Akella M. R., Subbarao K., “A Novel Parameter Projection Mechanism for Smooth and Stable Adaptive Control”, System and Control Letters, Elsevier, Vol. 54, No. 1, pages 43 – 51, January 2005.

Conference

• Kamesh Subbarao, Jonathan McDonald, “Multi-Sensor Fusion based Relative Navigation for Synchronization and Control of Free – Flying Robotic Spacecraft,” AIAA Guidance, Navigation, and Control Conference and Exhibit, San Francisco, CA, Aug., 2005.
• Kamesh Subbarao, Praveen Muralidhar, “Cooperative Control of UAVs in Dynamic Pursuit Subject to Communication Delays,” AIAA Guidance, Navigation, and Control Conference and Exhibit, San Francisco, CA, Aug., 2005.
• Byron Webb and Kamesh Subbarao, “A Mathematical Model for the Investigation of the Mode Shape Morphology of a Morphable Wing,” AIAA Region IV Student Conference, Albuquerque, NM, 7-9, April, 2005.
• Jennifer D. Goss and Kamesh Subbarao, “Inlet Optimization for High Mach Number Flows with Magnetohydrodynamics Effects,” AIAA Region IV Student Conference, Albuquerque, NM, 7-9, April, 2005. (PAPER WON THE SECOND PRIZE)
• Kamesh Subbarao, Brian Dennis, Jennifer Goss, “Optimal Location and Sizing of Synthetic Jet Actuators for Virtual Aerodynamic Shaping,” AIAA-2005-4766, 43rd AIAA Aerospace Sciences Meeting and Exhibit Reno, Nevada, Jan 2005.

2004

Journal

• Subbarao, K., Akella, M. R., “Differentiator Free Nonlinear Proportional-Integral Controllers for Rigid Body Attitude Stabilization”, AIAA Journal of Guidance, Control and Dynamics, Vol. 27, No. 6, pages 1092 – 1096, Nov – Dec, 2004.
• Subbarao K., “Nonlinear PID-like Control for Spacecraft Attitude Regulation”, Journal of Astronautical Sciences, Volume 52, Issue #1 & 2, January-June 2004

Conference

• Kamesh Subbarao, Atilla Dogan, “Intelligent Integrated Sensor, Control and Maneuver Mapping Architecture for Autonomous Vehicle Rendezvous and Docking,” AIAA-2004-6573, AIAA Unmanned, Unlimited Conference, Chicago, IL, Sept 2004. (Paper was subsequently included as part of Technical Kit for the AIAA InfoTech conference, 2006)
• Goss, J. D., Rajvanshi, R., Subbarao, K., “Aircraft Conflict Detection and Avoidance Using Mixed Geometric and Collision Cone Approaches,” AIAA-2004-4879, AIAA Guidance, Navigation, and Control Conference and Exhibit, Providence, Rhode Island, Aug. 16-19, 2004.
• Welsh, S. J., Subbarao, K., “Adaptive Synchronization and Control of Free Flying Robots for Capture of Dynamic Free-Floating Spacecrafts,” AIAA-2004-5298, AIAA/AAS Astrodynamics Specialist Conference and Exhibit, Providence, Rhode Island, Aug. 16-19, 2004.
• Subbarao K., Akella M. R., “Stable PI like Control Structures for a Class of Nonlinear Systems”, AAS/AIAA Spaceflight Mechanics Meeting, Maui, Hawaii, February 8-12, 2004.
• Singla P., Griffith T., Subbarao K., Junkins J., “Autonomous Focal Plane Calibration Using Intelligent Radial Basis Function Networks”, AAS/AIAA Spaceflight Mechanics Meeting, Maui, Hawaii, February 8-12, 2004.
• Tandale M., Subbarao K., Valasek J., Akella M. R., “Structured Adaptive Model Inversion Control with Actuator Saturation Constraints Applied to Tracking Spacecraft Maneuvers”, American Control Conference, Boston, July, 2004.
• Singla P., Subbarao K., Rediniotis O. K., Junkins J. L., “Intelligent Radial Basis Function Networks For Multiresolution Modeling: Application to Synthetic Jet Actuation and Flow Control”, 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, 5 – 8 Jan 2004.

2003

Book Chapters

• Subbarao, K., (2 Chapters) – “Integral Control”, “Derivative Control” – Process Control Circuits, NIIT (National Institute of Information Technology) Limited, New Delhi, 2003

Before September 2003

Journal

• Subbarao K., Junkins J. L., “Structured Model Reference Adaptive Control for a Class of Nonlinear Systems”, AIAA Journal of Guidance, Control and Dynamics, Vol. 26, No. 4, July-August 2003.
• Junkins J. L., Subbarao K. and Verma, A., “Structured Adaptive Control for Poorly Modeled Nonlinear Dynamical Systems”, Computer Modeling in Engineering & Sciences, Vol. 1, No. 4, 2000.
• Pradeep S. and Subbarao K., “Does the Phugoid Frequency Depend on Speed?” AIAA Journal of Guidance, Control and Dynamics, Vol. 22, No. 2, pp. 372-373 Mar-Apr 1999.
• Subbarao K. and Pradeep S., “The Phugoid Approximation Re-visited”, AIAA Journal of Aircraft, Vol. 35, No. 6, Nov-Dec 1998.

Conference

• Subbarao K., “The Attitude Control Problem, Re-Visited”, John L. Junkins Astrodynamics Symposium, College Station, TX, 23-24 May 2003, AAS 03-263.
• Singla P., Subbarao K., Hughes D., Junkins J. L., “Structured Model Reference Adaptive Control For Vision Based Spacecraft Rendezvous and Docking Problem”, AAS/AIAA Space Flight Mechanics Meeting, Ponce, Puerto Rico, Feb 9-13, 2003, AAS 03-103.
• Wilkins, M. P., Subbarao, K., Alfriend, K. T., Vadali, S. R., “Modeling and Simulation of a Powersail” AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 5 – 8 August, 2002, Monterey, CA, AIAA 2002-4519.
• Subbarao K., Verma A., Junkins J., “Model Reference Adaptive Control of Constrained Robotic Manipulators”, IEEE Conference on Control Applications, Mexico City, Mexico, 4-6 September, 2001.
• Subbarao K., Steinberg M., Junkins J. L., “Structured Adaptive Model Inversion Applied to Tracking Aggressive Aircraft Maneuvers”, AIAA Guidance Navigation and Control Conference, Montreal Quebec Canada, Aug 6-9, 2001.
• Subbarao K., Vadali S. R., Alfriend K. T., Junkins J. L., “A novel control design methodology for maintaining position and attitude of a Powersail”, AAS/AIAA Space Flight Mechanics Meeting, Santa Barbara, CA, Feb 11-14, 2001. AAS 01-229.
• Verma A., Subbarao K. and Junkins, J.L., “A Novel Trajectory Tracking Methodology using Structured Adaptive Model Inversion for UAVs”, 2000 American Control Conference, Chicago, IL, June 28-30, 2000.
• Subbarao, K., Verma, A., and Junkins, J.L., “Structured Adaptive Model Inversion Applied to Tracking Spacecraft Maneuver”, AAS/AIAA Space Flight Mechanics Meeting, Clearwater, FL, Jan 23-26, 2000.
• Junkins J. L., Subbarao K. and Verma, A., “Structured Adaptive Control for Poorly Modeled Nonlinear Dynamical Systems”, Invited Plenary Lecture, International Conference on Computational Engineering Sciences, ICES 2000, Anaheim, CA.
• Akella M.R., Subbarao K. and Junkins J.L., “Non-linear Adaptive Autopilot for Uninhabited Aerial Combat Vehicles”, AIAA Atmospheric Flight Conference, Portland OR, August ’99, AIAA-99-4218.
• Subbarao K. and Pradeep S., “Refined Phugoid Approximations for Conventional Aircraft”, AIAA Atmospheric Flight Conference, Boston, MA, Aug ’98, AIAA-98-4269.