Va. Ugrinovskii et Ir. Petersen, Finite horizon minimax optimal control of nonlinear continuous time systems with stochastic uncertainty, DYN CONTROL, 10(1), 2000, pp. 63-86
This paper develops a general continuous-time stochastic framework for robu
stness analysis and robust control synthesis. We consider a stochastic mini
max optimization problem for general stochastic uncertain systems. A genera
l method is presented for converting problems of performance analysis or co
ntroller synthesis into unconstrained optimization problems.