Moving horizon estimation with non-uniform sampling under component-based dynamic event-triggered transmission

The paper suggests a simple method for the design of a recent hybrid adaptive control scheme by using adaptive sampling techniques so as to improve the adaptation transients. Some extensions which consider a parametric adaptation law involving a dead zone to achieve signal boundedness in the presence of bounded disturbances are also given.

Adaptive sampling for improving the adaptation transients in hybrid adaptive control

Fundamental properties of linear control systems with after-effect-I

In systems with sensing cost, an active sensing policy is needed to determine when to collect sensing observations. This note presents an active sensing policy for systems with additive and parametric white noise. The policy uses an open-loop estimator between sensings and a Kalman filter when observations are requested. We present two active sensing policies. The goal of the first policy is to maintain the uncertainty (variance) of the state estimate below a given threshold. Sufficient conditions are presented that guarantee that this goal is achievable and will be met. The second policy senses when needed to distinguish discrete state regions for control. Sufficient conditions are presented that show within any specified probability, the control under the active sensing will be identical to the control under conventional sensing. Experiments demonstrate that sensing and sensing communications can be significantly reduced with active sensing policies, while still meeting control objectives.

Active sensing policies for stochastic systems

Using the matrix condition number concept, an adequate choice of the sampling instants leads to an optimal transmission of relative errors in the observability problem.

http://ieeexplore.ieee.org/iel5/9/24173/01102133.pdf

Inge Troch

Papers

Sampling with arbitrary choice of the sampling instants

Simulation and modelling of continuous systems—A case study approach: D. Matko, R. Karba and B. Zupancic