Research

Funding

F2. Harris (PI) and Whitmore (coI), Advanced Ascent Guidance for Lunar and Martian Science Missions, Sponsored by NASA, 9/20-4/21, $80,151.06.

F1. Whitmore (PI) and Harris (coI), 3-D Printed Hybrid Propulsion Solutions for SmallSat Lunar Landing and Sample Return, Sponsored by NASA, 5/20-4/22, $419,731.84.

Dissertations and Theses

D1. Harris, Lossless Convexification of Optimal Control Problems, UT Austin, PhD, 2014.

Patents

P3. Forouzanfar, Cheng, Imhof, Sain, Harris, El-Bakry, and Wu, Hierarchical Building and Conditioning of Geological Models with Machine Learning Parameterized Templates, Application No. 62/951,091, 2020.

P2. Harris, Outlier Detection for Identification of Anomalous Cross-attribute Clusters, Application No. 62/469,733, 2018.

P1. Harris, Acikmese, and Van Oort, LMI-Based Control of Stick-Slip Oscillations in Drilling, Application No. 15/456,108, 2017.

Journals

J*. Kunhippurayil and Harris, Strong Observability as a Sufficient Condition for Non-singularity in Optimal Control with Mixed Constraints, Automatica, Submitted November 2020.

J*. Shuster, Geller, and Harris, An Analytic Maneuver Sequence for Safety Ellipse Reconfigurations Based on Relative Orbital Elements, Journal of Guidance, Control, and Dynamics, Submitted October 2020.

J*. Kunhippurayil, Harris, and Jansson, Lossless Convexification of Optimal Control Problems with Annular Control Constraints, Automatica, Submitted September 2020.

J*. Harris, Optimal Control on Disconnected Sets using Extreme Point Relaxations and Normality Approximations, IEEE Transactions on Automatic Control, Submitted December 2019.

J8. Shuster, Geller, and Harris, Analytic Impulsive Maneuver Sequences for Nominal Safety Ellipse Reconfigurations, Journal of Guidance, Control, and Dynamics, Vol. 43, No. 10, 2020. Preprint

J7. Harris, Abnormal and Singular Solutions for a Two-player Zero-sum Differential Game, Journal of Optimization Theory and Applications, Vol. 184, No. 3, 2020. Preprint

J6. Dueri, Acikmese, Scharf, and Harris, Customized Real-time Interior-point Method for Onboard Powered Descent Guidance, Journal of Guidance, Control, and Dynamics, Vol. 40, No. 2, 2017. Preprint

J5. Acikmese, Demir, and Harris, Convex Necessary and Sufficient Conditions for Density Safety Constraints in Markov Chain Synthesis, IEEE Transactions on Automatic Control, Vol. 60, No. 10, 2015. Preprint

J4. Harris and Acikmese, Lossless Convexification of Non-convex Optimal Control Problems for State Constrained Linear Systems, Automatica, Vol. 50, No. 9, 2014. Preprint

J3. Harris and Acikmese, Maximum Divert and Soft Landing Using Convex Optimization, Journal of Optimization Theory and Applications, Vol. 162, No. 3, 2014. Preprint

J2. Harris and Acikmese, Minimum Time Rendezvous of Multiple Spacecraft Using Differential Drag, Journal of Guidance, Control, and Dynamics, Vol. 37, No. 2, 2014. Preprint

J1. Hull and Harris, Optimal Solutions for Quasi-planar Ascent over a Spherical Moon, Journal of Guidance, Control, and Dynamics, Vol. 35, No. 4, 2012. Preprint

Conferences

C15. Akagi, Christensen, and Harris, Centralized UAV Swarm Formation Estimation with Relative Bearing Measurements and Unreliable GPS, IEEE/ION Position Location and Navigation Symposium, Portland, Oregon, April 2020.

C14. Harris, Memarzadeh, Swanberg, and El-Bakry, A Gas Lift Optimization System with Variable Choke and Action Constraints, IEEE International Systems Conference, Orlando, Florida, April 2019.

C13. Harris, Real-time Solution of a Pursuit-Evasion Game for Ice Management, INFORMS Annual Conference, Phoenix, Arizona, November 2018.

C12. Shafrova, Holub, Harris, et al., Common Operational Picture Requirements for Floating Drilling in Pack Ice, Offshore Technology Conference, St. John’s, Newfoundland, October 2016.

C11. Hamilton, et al., Near-field Ice Management Tactics for Floating Drilling in Arctic Pack Ice, Offshore Technology Conference, St. John’s, Newfoundland, October 2016.

C10. Harris, Acikmese, and Van Oort, LMI Based Control of Stick-slip Oscillations in Drilling, ASME Dynamic Systems and Control Conference, San Antonio, Texas, October 2014.

C9. Demir, Acikmese, and Harris, Convex Optimization Formulation of Density Upper Bound Constraints in Markov Chain Synthesis, American Control Conference, Portland, Oregon, June 2014.

C8. Harris and Acikmese, Lossless Convexification for a Class of Optimal Control Problems with Linear State Constraints, Conference on Decision and Control, Florence, Italy, December 2013.

C7. Harris and Acikmese, Lossless Convexification for a Class of Optimal Control Problems with Linear State Constraints, SIAM Conference on Control and Applications, San Diego, California, July 2013.

C6. Harris and Acikmese, Formation Flying Using Differential Drag and Feedback Control, AIAA Guidance, Navigation, and Control Conference, Boston, Massachusetts, August 2013.

C5. Harris and Acikmese, Lossless Convexification for a Class of Optimal Control Problems with Quadratic State Constraints, American Control Conference, Washington, DC, June 2013.

C4. Harris and Acikmese, Minimum Time Rendezvous Using Differential Drag, 23rd AAS/AIAA Spaceflight Mechanics Meeting, Kauai, Hawaii, February 2013.

C3. Hull and Harris, Optimal Solutions and Guidance for Quasi-planar Ascent over a Spherical Moon, 22nd AAS/AIAA Spaceflight Mechanics Meeting, Charleston, South Carolina, January 2012.

C2. Harris and Valasek, The Implicit Function Theorem with Applications in Dynamics and Control, 48th AIAA Aerospace Sciences Meeting, Orlando, Florida, January 2010.

C1. Gao and Harris, Analytical Solution for the Plane Strain Inclusion Problem of an Elastic Power-law Hardening Matrix Containing an Elastic Spherical Inclusion, Fifth International Conference on Nonlinear Mechanics, Shanghai, China, June 2007.

Research Philosophy