This paper is devoted to design of anisotropy-based stochastic robust controller of reduced order for longitudinal flight control in landing approach under the influence of both deterministic and stochastic external disturbances. The control aims at disturbance attenuation and stabilizing aircraft longitudinal motion along some desired glidepath. The controller design procedure consists of two steps. At first, the full-order optimal controller is obtained as the solution to normalized anisotropy-based stochastic H∞ optimization problem. Then, the optimal controller is reduced via a balanced truncation-like technique. The results of comparison of
reduced-order anisotropic controller with LQG and H∞ ones on the base of closed-loop system simulation are presented.