Title
Safety verification for distributed parameter systems using barrier functionals.
Abstract
We study the safety verification problem for a class of distributed parameter systems described by partial differential equations (PDEs), i.e., the problem of checking whether the solutions of the PDE satisfy a set of constraints at a particular point in time. The proposed method is based on an extension of barrier certificates to infinite-dimensional systems. In this respect, we introduce barrier functionals, which are functionals of the dependent and independent variables. Given a set of initial conditions and an unsafe set, we demonstrate that if such a functional exists satisfying two (integral) inequalities, then the solutions of the system do not enter the unsafe set. Therefore, the proposed method does not require finite-dimensional approximations of the distributed parameter system. Furthermore, for PDEs with polynomial data, we solve the associated integral inequalities using semi-definite programming (SDP) based on a method that relies on a quadratic representation of the integrands of integral inequalities. The proposed method is illustrated through examples.
Year
DOI
Venue
2017
10.1016/j.sysconle.2017.08.002
Systems & Control Letters
Keywords
Field
DocType
Safety verification,Barrier certificates,Sum-of-Squares programming,Distributed parameter systems
Discrete mathematics,Mathematical optimization,Polynomial,Quadratic equation,Approximations of π,Variables,Distributed parameter system,Partial differential equation,Mathematics
Journal
Volume
ISSN
Citations 
108
0167-6911
1
PageRank 
References 
Authors
0.36
19
3
Name
Order
Citations
PageRank
Mohamadreza Ahmadi1357.12
Giorgio Valmorbida210416.87
Antonis Papachristodoulou399090.01