Abstract
We consider contractive systems whose trajectories evolve on a compact and convex state-space. It is well-known that if the time-varying vector field of the system is periodic, then the system admits a unique globally asymptotically stable periodic solution. Obtaining explicit information on this periodic solution and its dependence on various parameters is important both theoretically and in numerous applications. We develop an approach for approximating such a periodic trajectory using the periodic trajectory of a simpler system (e.g., an LTI system). The approximation includes an error bound that is based on the input-to-state stability property of contractive systems. We show that in some cases, this error bound can be computed explicitly. We also use the bound to derive a new theoretical result, namely, that a contractive system with an additive periodic input behaves like a low-pass filter. We demonstrate our results using several examples from systems biology.
Original language | English |
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Article number | 8360452 |
Pages (from-to) | 847-853 |
Number of pages | 7 |
Journal | IEEE Transactions on Automatic Control |
Volume | 64 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2019 |
Keywords
- Computational methods
- entrainment
- stability of nonlinear systems
- systems biology
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Computer Science Applications
- Electrical and Electronic Engineering