State observer with Round-Robin aperiodic sampled measurements with jitter

A sampled-data observer is proposed for linear continuous-time systems whose outputs are sequentially sampled via non-uniform sampling intervals repeating a prescribed Round-Robin sequence. With constant (jitter-free case) we provide constructive necessary and sufficient conditions the design of an asymptotic continuous–discrete estimation error input-to-state stable (ISS) from process disturbances measurement noise. We use time-varying gain depending on elapsed time since last measurement. non-constant (jitter-tolerant case), our only sufficient. suspension system example shows effectiveness approach.