Level Crossing Sampling in Feedback Stabilization under Data-Rate Constraints

ERNESTO KOFMAN; JULIO BRASLAVSKY,

San Diego

Congreso; IEEE Conference on Decision and Control; 2006

This paper introduces a novel event-driven sampled-data feedback scheme where the plant output samples are triggered by the crossings—with hysteresis—of the signal through its quantization levels. The plant and controller communicate over binary channels that operate asynchronously and are assumed to be error and delay-free. The paper proposes two systematic output feedback control design strategies. The first strategy consists in the digital emulation of a previously designed analog controller. The second strategy is a simple direct design that drives the plant state to the origin in finite time after a total transmission of 2n+2 bits, where n is the order of the plant.