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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 19, 2016
Jackie Nemeth
School of Electrical and Computer Engineering
404-894-2906
Summary Sentence:
ECE Professor Erik I. Verriest received the Best Presentation Award in the session ThB25 Communication Delay in Network Control at the American Control Conference, held July 7 in Boston, Massachusetts.
Full Summary:
ECE Professor Erik I. Verriest received the Best Presentation Award in the session ThB25 Communication Delay in Network Control at the American Control Conference, held July 7 in Boston, Massachusetts.
Erik VerriestErik I. Verriest received the Best Presentation Award in the session ThB25 Communication Delay in Network Control at the American Control Conference, held July 7 in Boston, Massachusetts. Verriest is a professor in the Georgia Tech School of Electrical and Computer Engineering (ECE).
Verriest coauthored this presentation entitled “Reachability of a Cascade of Linear Systems with Communication Delays" with the late Uwe Helmke of the Institute of Mathematics at the Julius Maximilian University of Würzburg in Würzburg, Germany and Paul Fuhrmann of the Department of Mathematics at Ben Gurion University of the Negev in Beer Sheva, Israel. The research is in the area of mathematical systems theory and was conducted while Verriest was on professional development leave in Würzburg last fall.
Verriest and his colleagues derived necessary and sufficient conditions for a notion of "restricted reachability,” when only the states of certain subsystems in a cascade of systems need to be controllable. This is a more general formulation of a motivating problem when a string of robots communicate from one to the next, while the first in the chain receives the control signals. In this case, the states of the communication systems between the robots are of no concern, but the robots' states are. Similarly, the states of a river need to be controlled at certain geographic locations such as population centers, while not as much control is needed in the levels of intermediate floodplains. These conditions, cast in a polynomial systems theoretic framework, generalize the Necessary and Sufficient Condition for full reachability of a cascade, derived by Helmke and Fuhrmann in 2015.
