Company

Alec J. Bateman - Principal Research Scientist

Mr. Bateman received a B.S. degree in Electrical Engineering from Rensselaer Polytechnic Institute in 1997. He joined Barron Associates in 1997, and received an M.S. in Electrical Engineering from the University of Virginia while continuing to work for Barron Associates. His Masters research was on stability analysis and control design techniques for systems with actuator saturation.

Mr. Bateman has been involved in a number of research efforts related to verification and validation of advanced flight control laws. Currently, he is serving as the principal investigator for a NASA funded research effort focused on developing tools for automated test vector generation to aid in off-line testing of control algorithms. He is also involved in an Air Force funded program to develop run-time verification and validation approaches for safety critical flight control systems. These approaches would provide a means of safely using algorithms that provide enhanced capabilities but for which traditional off-line V&V is inadequate. This program has recently entered Phase II and is expected to culminate in hardware-in-the-loop testing of a system that monitors adaptive and learning elements in a control law and selectively disables components in the unlikely event of an algorithm fault.

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Representative Publications, Patents and Presentations

Bateman, A. and J. Hull and Z. Lin, "A backstepping-based low-and-high gain design for marine vehicles," International Journal of Robust and Nonlinear Control, Vol. 19, No. 4, pp. 480-493, 2009.

A. Bateman, M. DeVore, and G. Balas, "A validation tool for diagnostic systems," in Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, AIAA-2009-5673, August 2009.

M. Lichter, A. Bateman, and G. Balas, "Flight test evaluation of a run-time stability margin estimation tool," in Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, AIAA-2009-6257, August 2009.

Bateman, A., G. Balas, J. Cooper, M. Aiello, D. Ward, "Analytical and Simulation-Based Control Law Robustness Validation Using CAESAR," AIAA-2008-6655, Proc. AIAA Guidance, Navigation, and Control Conf., Honolulu, HI, Aug. 18-21, 2008.

Bateman, A., J. Hull, and Z. Lin, "On the Properties of the Backstepping Design for Marine Vehicles.", Proc. 33rd Annual Conference of the IEEE Industrial Electronics Society, Taipei, Taiwan, Nov. 5-8, 2007.

Bateman, A., C. Elks, D. Ward, and J. Schierman, "New Verification and Validation Methods for Guidance/Control of Advanced Autonomous Systems." Proc. AIAA InfoTech Conf., Alexandria, VA, Sept. 26-29, 2005.

Bateman, A., D. Ward, and G. Balas, "Robust/Worst-Case Analysis and Simulation Tools." Proc. AIAA Guidance, Navigation, and Control Conf., San Francisco, CA, August 15-18, 2005.

Monaco, J., D. Ward, and A. Bateman, "A Retrofit Architecture for Model-Based Adaptive Flight Control," AIAA Paper No. 2004-6281, in Proc.of AIAA Intelligent Systems Conference, Sep. 2004.

Bateman, A. and Z. Lin, "An Analysis and Design Method for Discrete Time Linear Systems under Nested Saturation," IEEE Trans. Automatic Control, Vol. 47, No. 8, Aug. 2002, pp. 1305-1310.

Bateman, A.J.D. and Z. Lin, "An Analysis and Design Method for Discrete Time Linear Systems Under Nested Saturation," Proc. American Control Conf., Anchorage, AK, May 8-10, 2002.

Bateman, A., D. Ward, and J. Monaco, "Stability Analysis for Reconfigurable Systems with Actuator Saturation," Proc. American Control Conf., Anchorage, AK, May 8-10, 2002.

Bateman, A. and Z. Lin, "An Analysis and Design Method for Linear Systems under Nested Saturation." Proc. American Control Conf., Anchorage, AK, May 8-10, 2002.

Bateman, A. and Z. Lin, "An Analysis and Design Method for Linear Systems under Nested Saturation," Systems & Control Letters, Vol. 48, No. 1, pp. 41-52, 2002.

Bateman, A., D. Ward, R. Barron, M. Whalley, "Piloted Simulation Evaluation of a Neural Network Limit Avoidance System for Rotorcraft," Proc. AIAA Atmospheric Flight Mechanics Conference, AIAA Paper No. 99-4252, Portland, OR, Aug. 9-11, 1999.