Output Feedback MPC with Adaptive Tubes
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866916039605878784 |
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| author | Dey, Anchita Bhasin, Shubhendu |
| author_facet | Dey, Anchita Bhasin, Shubhendu |
| contents | An output feedback model predictive control (MPC) framework with adaptive tubes is proposed for linear time-invariant systems subject to parametric and additive uncertainties. An adaptive observer provides point estimates of the system state, model parameters, and initial condition, while jointly updating the corresponding sets containing the true parameters and initial state. These estimates parameterize the constrained optimal control problem, enabling constraint tightening, terminal ingredients, and tube geometry to be updated as the estimates evolve. In contrast to standard robust tube-based MPC formulations, the proposed approach does not require a common quadratically stabilizing linear feedback gain across the parametric uncertainty set. As the available uncertainty information improves, the tube geometry evolves accordingly, resulting in an adaptive tube MPC framework with improved performance over time. Recursive feasibility and robust exponential stability are established, and a numerical example is presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_23661 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Output Feedback MPC with Adaptive Tubes Dey, Anchita Bhasin, Shubhendu Systems and Control Optimization and Control An output feedback model predictive control (MPC) framework with adaptive tubes is proposed for linear time-invariant systems subject to parametric and additive uncertainties. An adaptive observer provides point estimates of the system state, model parameters, and initial condition, while jointly updating the corresponding sets containing the true parameters and initial state. These estimates parameterize the constrained optimal control problem, enabling constraint tightening, terminal ingredients, and tube geometry to be updated as the estimates evolve. In contrast to standard robust tube-based MPC formulations, the proposed approach does not require a common quadratically stabilizing linear feedback gain across the parametric uncertainty set. As the available uncertainty information improves, the tube geometry evolves accordingly, resulting in an adaptive tube MPC framework with improved performance over time. Recursive feasibility and robust exponential stability are established, and a numerical example is presented. |
| title | Output Feedback MPC with Adaptive Tubes |
| topic | Systems and Control Optimization and Control |
| url | https://arxiv.org/abs/2605.23661 |