Abstract
This paper introduces the notion of improvability and bottlenecks of feedback systems in the context of instrumentation cost. Specifically, a feedback system is improvable if its performance can be enhanced by reallocating sensor and actuator costs under budget constraints. We derive a criterion which determines when the system is improvable, using the LQG performance index. In addition, we introduce and analyze the notion of instrumentation bottleneck and provide a criterion for bottleneck identification. An important feature of the results derived is that both improvability and BN indicators can be evaluated using on-line measurements in the feedback loop, without requiring precise knowledge of the plant data. Examples illustrating results are provided.
| Original language | English |
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| Pages (from-to) | 4753-4758 |
| Number of pages | 6 |
| Journal | Proceedings of the IEEE Conference on Decision and Control |
| Volume | 5 |
| State | Published - 2000 |
| Event | 39th IEEE Confernce on Decision and Control - Sydney, NSW, Australia Duration: 12 Dec 2000 → 15 Dec 2000 |