Robust suboptimal control of linear nonstationary objects on an output

The problem of suboptimal control for parametrically and functionally uncertain, linear non-stationary object is solved. It is supposed that only scalar input and output of the object are available for measurement. The purpose of the control is sub-minimize the integral with an infinite top limit from square-law function, dependent on an output signal and a control signal. The received algorithm is simple, and does not require difficult analytical calculations of parameters of a control system. The serviceability of the received algorithms is illustrated on numerical examples.