Yamamoto, YutakaAnderson, BrianNagahara, Masaaki2015-12-132015-12-13December 10780375165http://hdl.handle.net/1885/71977Despite the existence of methods for a direct optimal design of sampled-data control systems, it is often desired to approximate sampled-data systems with discrete-time ones. This occurs frequently in the context of digital redesign, in which one retainsKeywords: Approximation theory; Convergence of numerical methods; Frequency domain analysis; Optimal control systems; Parameter estimation; Digital redesign; First order approximation; Sampled data control systems20022015-12-11