- Title
- Feasibility of constrained receding horizon control implementation in adaptive optics
- Creator
- Konnik, Mikhail; De Dona, Jose
- Relation
- IEEE Transactions on Control Systems Technology Vol. 23, Issue 1, p. 274-289
- Publisher Link
- http://dx.doi.org/10.1109/TCST.2014.2324179
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2015
- Description
- Adaptive optics (AO) provides real-time compensation for atmospheric turbulence to improve the resolution of images acquired by ground-based optical telescopes. The actuators in deformable mirrors, which are used as correctors, are constrained by a maximal allowable movement. The control techniques used in current AO systems do not account for these constraints, leading to inferior performance and a risk of damage of the deformable mirror's surface. This article presents a feasibility study for Receding Horizon Control (RHC) with on-line constrained Quadratic Programming (QP). The results of numerical simulations provided in this article are based on realistic models obtained from an optical test-bench. We compare QP algorithms that represent three main methods for convex optimisation: Interior Point, Active Set, and Gradient-based algorithms. It is shown that constrained RHC is computationally feasible for moderate-size adaptive optics systems using hot-started structure-exploiting Active Set QP solvers with bound constraints. An evaluation of performance indicates that RHC is advantageous in terms of atmospheric turbulence rejection in the case of active constraints.
- Subject
- adaptive optics; constrained control; online optimisation; QP solvers
- Identifier
- http://hdl.handle.net/1959.13/1056848
- Identifier
- uon:16094
- Identifier
- ISSN:1063-6536
- Rights
- © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
- Language
- eng
- Full Text
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