Deadbeat control using periodic feedback

Current efforts to develop simple control algorithms suitable for microprocessor implementation have led to a renewed interest in the effect of periodic output feed-back laws ui = fiyi, i ≥ 1 (1) on the closed-loop response of single-input, single-output, n-dimensional, discrete-time processes xi+1 = Axi + bui yi = cxi (2) Relative ease of implementation makes control laws such as (1) an attractive alternative to conventional dynamic compensation for process regulation [1].