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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Atlanta, GA | Posted: July 15, 2019
Magnus Egerstedt received the O. Hugo Schuck Best Paper Award at the 2019 American Control Conference (ACC), held July 10-12 in Philadelphia, Pennsylvania. The 2019 award is given to the best paper presented at the 2018 conference, which was held in Milwaukee, Wisconsin.
Egerstedt–who is the Steve W. Chaddick School Chair of the School of Electrical and Computer Engineering–was honored for his paper, "Permissive Barrier Certificates for Safe Stabilization Using Sum-of-Squares.” His coauthors are Li Wang, a Ph.D. alumnus of the Georgia Robotics and Intelligent Systems Lab (led by Egerstedt) and who now works at Tesla, and Dongkun Han, a postdoctoral fellow in aerospace engineering at the University of Michigan.
For safety-critical systems, such as autonomous robots, it is important that they only operate in regions from which they can be stabilized, so that they never end up in situations from which it is impossible to recover. But, at the same time, these systems must satisfy various additional safety constraints, such as unmanned aircraft not getting too close to other aircraft, or the forces and torques provided by the actuators not exceeding their limits. This paper shows how to compute the largest possible such "safe stabilization region” in which the system can operate by combining ideas from nonlinear dynamical systems, optimization, and algebraic geometry.