Suboptimal control over linear non-stationary plant with delay

The article focuses on the fact that the problem of suboptimal control over parametrically and functionally undefined linear non-stationary plant has been solved. It is supposed that only scalar input and output of plant are determinable. The purpose of control consists in subminimization of the integral with an infinite top limit from square-law sub-integral function dependent on a scalar input of the plant and a control signal. The algorithm received is simple and does not require difficult analytical accounts of parameters of a control system. The serviceability of the received algorithms is illustrated on numerical examples.