Study of low altitude flight trajectory control of aircraft

The hierarchical control theory of related large-scale systems is used to study the trajectory tracking problem of six degree-of-freedom aircraft which have vertical and horizontal orientation coupling. A good control result is obtained via the partial control laws design independently of the vertical and horizontal orientation, and the global control laws design in which coupling factors are taken into consideration. The method presented avoids the conventional decoupling process, reduces the difficulty of theoretical study and is easy to realize in engineering