Dr. George York
Professor of Electrical and Computer Engineering
Bio
Dr. George York is a Professor of Electrical and Computer Engineering at the U.S. Air Force Academy, Colorado. He serves as the Computer Engineering Program Director and the Academy Center for Unmanned Aircraft Systems (UAS) Research Director. He received his PhD in Electrical Engineering from the University of Washington. His research interests include the cooperative control of autonomous systems, digital signal processing, and embedded computer systems. He has 50+ publications in book chapters, journals, and conference proceedings. He is a Senior Member IEEE and serves on the National Council of Examiners for Engineering and Surveying (NCEES) Electrical and Computer Professional Engineering (PE) exam subcommittee. Dr York was a Distinguished Graduate of the United States Air Force Academy, Class of 1986. He retired from the Air Force as a Lieutenant Colonel and has served on the U.S. Air Force Academy faculty as a civil servant since 2010.
Education
Air War College (2004)
Air Command and Staff College (2000)
Doctor of Philosophy, Electrical Engineering, University of Washington, Seattle (1999)
Squadron Officer School (1992)
Master of Science, Electrical Engineering, University of Washington, Seattle (1988)
Bachelor of Science, Electrical Engineering, U.S. Air Force Academy, Colorado (1986)
Professional Experience
Professor, UAS Research Director, and Computer Engineering Program Director, Department of Electrical and Computer Engineering, U.S. Air Force Academy, Colorado Springs, Colorado (2010-Present)
Associate Professor, Department of Physics, U.S. Air Force Academy, Colorado Springs, CO (2009-2010)
Air Force Office of Scientific Research (AFOSR), European Office of Aerospace Research and Development (EOARD), London, United Kingdom (2006-2009)
Associate Professor and Operations Officer, Department of Electrical and Computer Engineering, U.S. Air Force Academy, Colorado Springs, Colorado (2002-2006)
Division Chief, Tactical SIGINT Technology, National Security Agency (NSA), Fort Meade, Maryland (1999-2002)
PhD Candidate, University of Washington, Seattle, Washington (1996-1999)
Instructor, Department of Electrical Engineering, U.S. Air Force Academy, Colorado Springs, Colorado (1994-1996)
Air Force Office of Scientific Research (AFOSR) Engineer/Scientist Exchange Program (ESEP), Taejon, Korea (1992-1994)
Project Engineer, Air Force Research Laboratory (AFRL), Eglin AFB, Florida (1988-1992)
Master’s Student, University of Washington, Seattle, Washington (1986-1988)
Honors & Awards
Seiler Award for Research Excellence (Engineering)
Senior Member of IEEE
Professional Engineer, License number 37725, Colorado
Thomas Award, Outstanding Educator of the Year, U.S. Air Force Academy Department of Electrical and Computer Engineering faculty
Tau Beta Pi, the National Engineering Honor Society
Research and Scholarly Interests
Cooperative control of autonomous systems
Digital signal processing
Machine vision
Embedded computer systems
Publications
1. R. Sharma and G. York, “Near Optimal Finite-Time Terminal Controllers for Space Trajectories via SDRE-Based Approach Using Dynamic Programming”, Journal of Aerospace Science and Technology, Vol. 75, January 2018, pp 128-138.
2. S. Gruber, H. Kwon,H., G. York, and D. Pack, “Payload Design of Small UAVs,” invited chapter in Handbook of Unmanned Aerial Vehicles, Editors K.P. Valavanis and G. J. Vachtsevanos , Springer, 2018
3. C. R. Ashokkumar, G. W. P. York, and S. Gruber “Trustable UAV for Higher Level Control Architectures,” Journal of Aerospace Science and Technology, Vol. 68, September 2017, pp 204-213.
4. C. R. Ashokkumar and G. W. P. York “Adaptive Fault Tolerant Control for Reconfigurable Systems”, Proceedings of the IMechE: Journal of Aerospace Engineering, August 2017.
5. C. R. Ashokkumar and G. W. P. York, and E Lagimoniere, “Time Response Bounds in Nonlinear UAV Control”, International Conference on Unmanned Aerial Systems, Miami, FL, June 2017, pp 16-22.
6. C. R. Ashokkumar and G. W. P. York, “Data Science for Decision Aiding UAV Control”, International Conference on Unmanned Aerial Systems, Miami, FL, June 2017, pp 11-15.
7. R. Sharma and G. W. P. York, “Near Optimal Finite-Time Feedback Control Synthesis using the SDRE-Based Approach Extended for Nonlinear Terminal Constraints and Hypersurfaces”, 27th AAS/AIAA Space Flight Mechanics Meeting, February 5-9, 2017, San Antonio, TX.
8. C. R. Ashokkumar and G. W. P. York, “Aerophysics Interpreting Its Potential Pilot Physiology,” Journal of Intelligent & Robotic Systems, Special Issue on Unmanned Aerial Systems, 88(2), February 2017, pp 711-720
9. C. R. Ashokkumar and G. W. P. York, “Unmanned Aerial Vehicle Flight Control Evaluations Under Sensor and Actuator Faults,” Journal of Intelligent & Robotic Systems, Special Issue on Unmanned Aerial Systems, 88(2), February 2017, pp. 437-447
10. C. R. Ashokkumar and G. W. P. York, “Fault Tolerant Margins for Unmanned Aerial Vehicle Flight Safety,” Journal of Intelligent & Robotic Systems. 88(2), February 2017, pp 481-494.
11. C. R. Ashokkumar and G. W. P. York, “Sensor Fusions for Constant Thrust Aircraft Navigation in Pitch Plane”, Proceedings of the IMechE: Journal of Aerospace Engineering, December, 2016.
12. C. R. Ashokkumar, G. W. P. York, and S. Gruber, ” Nonlinear Trajectory Transcriptions for Aircraft Loss of Control Recovery “, Proceedings of the IMechE: Journal Systems and Control Engineering, Vol. 230(10), November 2016, pp 1145–1153.
13. J. Ryu and G. York, “Advancing Drought Monitoring Using a Small Unmanned Aerial System (UAS)”, UKC2016, Enriching Lives through Science Technology and Entrepreneurship, Hyatt Regency DFW, Texas, August 10-13, 2016
14. C. R. Ashokkumar, G. W. P. York, and S. Gruber, “Nonlinear Cooperative UAV Maneuvers in Pitch Plane”, Proceedings of the IMechE: Journal of Aerospace Engineering, Vol. 231(9), July 2016, pp 1746-1755.
15. C. R. Ashokkumar, G. W. P. York, and S. Gruber, “Fault Tolerant Margins for an UAV at Uncertain Environment”, International Conference on Unmanned Aerial Systems, Arlington VA, June 2016.
16. G. York, J. Butler, and T. Hyer, “Motivating Students with an Unmanned Aerial System (UAS) Airmanship and Research Program,” Proceedings of the 2016 American Society for Engineering Educators (ASEE) Annual Conference and Exposition, New Orleans, June 2016.
17. C. R. Ashokkumar, G. W. P. York, and S. Gruber, “Proportional-Integral-Derivative Controller Family for Pole Placement”, Proceedings of the IMechE: Journal of Mechanical Engineering Science, Vol. 203-210, May 2016, pp 1989-1996.
18. C. Ashokkumar and G York, “Trajectory Transcriptions for Potential Autonomy Features in UAV Maneuvers”, 2016 AIAA Guidance, Navigation, and Control Conference, January 4-8, 2016 in San Diego, CA.
19. C. Ashokkumar and G York, “UAV Control and Simulation Using Trajectory Transcriptions”, 2016 AIAA Modeling and Simulation Technologies Conference, January 4-8, 2016, in San Diego, CA.
20. C. Ashokkumar and G York, “Aircraft Navigation with Uncertain Aerodynamics”, 2016 AIAA Atmospheric Flight Mechanics Conference, January 4-8, 2016, in San Diego, CA. [Citations: 5]
21. C. Ashokkumar and G York, “Observer Based Controllers for UAV Maneuver Options”, 2016 AIAA Guidance, Navigation, and Control Conference, January 4-8, 2016, in San Diego, CA.
22. Gruber, S., Streeter, R., and York G., “Flexible Multi-agent Algorithm for Distributed Decision Making,” International Conference on Unmanned Aerial Systems, June 2015, Denver CO
23. G. York, E. G. Royer, D. Harold, and D. D. Jensen, “Assessment of a Multi-University Unmanned Systems Capstone Design Project,” Proceedings of the 2013 American Society for Engineering Educators (ASEE) Annual Conference and Exposition, Atlanta, Georgia, June 2013.
24. A. Mundy, A. Laffely, B. J. Cooper, G. York, and H. L. Hess, “Promoting STEM with an Electric Energy System,” Proceedings of the 2013 American Society for Engineering Educators (ASEE) Annual Conference and Exposition, Atlanta, Georgia, June 2013. [Acceptance Rate 50.5%]
25. Amy Abraham, Daniel Harold, Michael McLain, Tristan Latchu, Hyukseong Kwon, George York and Daniel Pack, “Joint Cooperative Unmanned Systems Initiative,” International Conference on Robotics and Automation (ICRA 2012), St Paul, Minnesota, May 2012.
26. G. York and D. Pack, “Ground Target Detection Using Cooperative Unmanned Aerial Systems,” Journal of Intelligent & Robotic Systems, Vol. 65 (1-4), 2012, Page 473-478.
27. G. York and D. Pack, “Multi-Disciplinary Capstone Design Project: An Unmanned Aircraft System (UAS) for Vehicle Tracking,” Proceedings of the 2011 American Society for Engineering Educators (ASEE) Annual Conference and Exposition, Vancouver, Canada, June 2011.
28. G. York and D. Pack, “Ground Target Detection using Cooperative Unmanned Aerial Systems,” Proceedings of the 2011 International Conference on Unmanned Aircraft Systems, Denver, May 2011.
29. D. Pack, P. Delima, G. Toussaint, and G York, “Cooperative Control of UAVs for Localization of Intermittently Emitting Mobile Targets,” IEEE Trans. on Systems, Man, and Cybernetics, Vol. 39(4), September 2009, pp 959-70.
30. M. Maurice, G. York, D. Won, W. Sanders and S Masoni, “Basic Research in Space Science: Meaningful Collaboration with Developing Countries,” Proceedings of the 4th International Conference on Recent Advances in Space Technologies, Istanbul, Turkey, June 2009.
31. G. York and D. Pack, “Cooperative Persistent Surveillance Search Algorithms using Multiple Unmanned Aerial Vehicles,” invited chapter in Cooperative Control and Optimization, Lecture Series in Control and Information Sciences, Kluwer Academic Publishers, Amsterdam 2008, pp 279-290.
32. G. W. P. York, D. J. Pack, and J. Harder, “Comparison of Cooperative Search Algorithms for Mobile RF Targets using multiple Unmanned Aerial Vehicles,” invited chapter in Cooperative Systems: Control and Optimization, lecture Notes In Economics and Mathematical Systems, Edited by Don Grundel, Robert Murphey, Panos Pardalos, Oleg Prokopyev, Springer-Verlag, Berlin, 2007.
33. P. DeLima, G. York, and Daniel Pack, “Localization of Ground Targets Using a Flying Sensor Network,” Proceedings of the 2006 IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing., Taichung, Taiwan, June 2006.
34. G. Toussaint, P. Lima, G. York, and D. Pack, “Cooperative Scheduling of UAV Sensors to Locate RF Targets,” invited paper, 2006 Joint Electronics Warfare Conference, Las Vegas, May 2006.
35. D. Pack, G. York, and R. Fierro, “Information-Based Cooperative Control for Multiple Unmanned Aerial Vehicles,” Proceedings of the 2006 IEEE International Conference On Networking, Sensing and Control, Ft. Lauderdale, Florida, April, 2006.
36. K. M. Morris, B. E. Mullins, D. J. Pack, G. W. P. York, and R. O. Baldwin, “Impact of Limited Communications on a Cooperative Search Algorithm for Multiple UAVs,” Proceedings of the IEEE International Conference on Networking, Sensing, and Control, Ft Lauderdale, Florida, April 2006.
37. G. W. P. York and D. J. Pack, “Cooperative Persistent Surveillance Search Algorithms using Multiple Unmanned Aerial Vehicles,” Proceedings of the 6th International Conference on Cooperative Control and Optimization, Gainesville, Florida, January 2006.
38. D. J. Pack, G. W. P. York, R. E. Sward, and S. D. Cooper, “Searching, Detecting, and Monitoring Emergency Sites using Multiple Unmanned Aerial Vehicles,” Proceedings of 2005 AIAA Int’l Conference on Infotech and Aerospace on Collaboration in UAV Systems,, Washington, D.C., September 2005.
39. T Gilbert, T. Kubler, A. Palmer, H. Gilbert, E. G. Royer, G. York, G. Toussaint, G. Dameron, J. Harder, and D. Pack, “Multi-Disciplinary Senior Design Project: A Case Study on a Multiple Mobile Robots Project,” Proceedings of the 2005 ASEE Annual Conference and Exposition, Portland, Oregon, June 2005.
40. D. J. Pack and G. W. P. York, “An Extended Time Horizon Search Technique for Cooperative Unmanned Vehicles to Locate Mobile RF Targets,” Proceedings of the 2005 International Symposium on Collaborative Technologies and Systems, Saint Louis, Missouri, May 2005.
41. G. W. P. York, “Teaching Real-Time Ultrasonic Medical Imaging with a 4 channel Sonar Array, TI C6711 DSK and MATLAB,” Proceedings of the 41st Annual Rocky Mountain Bioengineering Symposium, Copper Mountain, Colorado, April 2005. [Citations: 2]
42. D. J. Pack and G. W. P. York, “Developing a Control Architecture for Multiple Unmanned Aerial Vehicles to Search and Localize RF Time-Varying Mobile Targets: Part I,” Proceedings of the 2005 International Conference on Robotics and Automation, Barcelona, Spain, April 2005, pp. 3965-3970.
43. G. York and D. Pack, “Comparative Study on Time-Varying Target Localization Methods using Multiple Unmanned Aerial Vehicles: Kalman Estimation and Triangulation Techniques,” Proceedings of the 2005 IEEE International Conference On Networking, Sensing and Control , Tucson, Arizona, March 2005, pp. 305-310,
44. D. Pack, G. York and G. Toussaint, “Localizing Mobile RF Targets using Multiple Unmanned Aerial Vehicles with Heterogeneous Sensing Capabilities,” Proceedings of the 2005 IEEE International Conference On Networking, Sensing and Control , Tucson, Arizona, March 2005, pp. 632-637.
45. G. W. P. York, D. J. Pack, and J. Harder, “Comparison of Cooperative Search Algorithms for Mobile RF Targets using multiple Unmanned Aerial Vehicles,” Proceedings of the 5th International Conference on Cooperative Control and Optimization, Gainesville, Florida, January 2005.
46. G. W. P. York and D. J. Pack, “Minimal Formation Based Unmanned Aerial Vehicle Search Method to Detect RF Mobile Targets,” Proceedings of the 2nd Annual Swarming Conference: Networked Enabled C4ISR, Washington D.C. Jun 2004.
47. G. W. P. York, C. M. Rondeau, D. F. Fuller, “Teaching Real-time DSP applications (Voice Removal) with the C6711 DSK and MATLAB,” Proceedings of the 2004 ASEE Annual Conference and Exposition, Salt Lake City, UT, June 2004.
48. G. W. P. York, M. G. Morrow, T. B. Welch, and C. H. G. Wright, “Teaching Real-time Sonar With The C6711 DSK and MATLAB,” ASEE Computers in Education Journal, Vol. 3, Sep 2002.
49. G. W. P. York, “Ultrawideband (UWB) Research,” Joint Electronic Warfare Conference (JEWC), San Antonio, TX, May 2002.
50. G. W. P. York, M. G. Morrow, T. B. Welch, and C. H. G. Wright, “Teaching Real-time Sonar With The C6711 DSK and MATLAB,” Proceedings of the 2001 ASEE Annual Conference and Exposition, Albuquerque, NM, June 2001. [Citations: 9]
51. C. H. G. Wright, M. G. Morrow, T. B. Welch, and G. W. P. York, “Demonstration Platform For Real-Time Beamforming,” 26th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Salt Lake City, UT, May 2001.
52. M. G. Morrow, T. B. Welch, C. H. G. Wright, G. York, “Teaching Real-time Beamforming With The C6211 DSK and MATLAB,” DSPS Fest 2000, Houston, TX, August 2000.
53. R. Managuli, G. York, D. Kim, and Y. Kim, “Mapping of two-dimensional convolution on very long instruction word media processors for real-time performance,” SPIE Journal of Electronic Imaging, Vol. 09(03), July 2000.
54. G. York and Y. Kim, “Ultrasound Processing and Computing: Review and Future Directions,” Chapter in Annual Review of Biomedical Engineering, Vol. 1, 1999, pp 559-588.
55. S. F. Barrett, D. J. Pack, G. W. P. York, P. J. Neal, R. D. Fogg, E. Doskocz, S. A. Stefanov, P. C. Neal, C. H. G. Wright, and A. R. Klayton, “Student-centered Educational Tools for the Digital Systems Curriculum,” ASEE Computers in Education Journal, Vol. 1, Mar 1999.
56. G. York, R. Managuli, and Y. Kim, “Fast Binary and Gray-scale Mathematical Morphology on VLIW Mediaprocessors,” SPIE Electronic Imaging, Vol. 3645, Jan 1999.
57. R. Managuli, G. York, and Y. Kim, “An Efficient Convolution Algorithm for VLIW Mediaprocessors,” SPIE Electronic Imaging, Vol. 3655, Jan 1999.
58. C. Bosoglu, R. Managuli, G. York, and Y. Kim, “Computing Requirements of Modern Medical Diagnostic Ultrasound Machines,” Parallel Computing, Vol. 24, 1998, pp 1407-1431.
59. S. F. Barrett, D. J. Pack, G. W. P. York, P. J. Neal, R. D. Fogg, E. Doskocz, S. A. Stefanov, P. C. Neal, C. H. G. Wright, and A. R. Klayton, “Student-centered Educational Tools for the Digital Systems Curriculum,” Proceedings of the 1998 ASEE Annual Conference and Exposition, Seattle, WA, June 1998.
60. G. York, C. Basoglu, and Y. Kim, “Real-Time Ultrasound Scan Conversion on Programmable Mediaprocessors”, SPIE Medical Imaging, Vol. 3335, 1998, pp. 252-262.
61. D. Pack, S. Stefanov , G. W. P. York, and P. J. Neal, “Constructing a Wall-Follower Robot for a Senior Design Project,” ASEE Computers in Education Journal, Vol. VII, No. 1, pp. 39 – 43, January-March 1997.
62. P. J. Neal and G. W. P. York, “MC68HC11 Portable Lab Unit – A Flexible Tool for Teaching Microprocessor Concepts,” Proceedings of the 1996 ASEE Annual Conference and Exposition, Washington D.C., June 1996.
63. D. Pack, G. W. P. York, P. J. Neal, and S. Stefanov, “Constructing a Wall-Follower Robot for a Senior Design Project,” Proceedings of the 1996 ASEE Annual Conference and Exposition, Washington D.C., June 1996.
64. G. W. P. York and R. D. Fogg, “VISICOMP: The Visible Computer,” Proceedings of the 1996 ASEE Annual Conference and Exposition, Washington D.C., June 1996.
65. G. W. P. York and Jong M. Rhee, “Commercial Implementation of X.400 MHS in a Military Messaging System,” Proceedings of the Winter Computer Communication Workshop, Pohang, Korea, 1993.