Analytical Synthesis of a Modal Controller by Output Vector for Attitude Control of a Descent Module during Its Descent in the Earth’s Atmosphere

Abstract

A new analytical algorithm of modal control is developed for the sixth-order control system that represents the problem of descent module attitude stabilization using the values of two angles measured by free gyroscope and three components of angular velocity vector with respect to the corresponding coordinate axes measured by the angular velocity sensor. This algorithm belongs to the category of dynamic object control algorithms by the output vector and it is based on synthesis of a state vector observer.