A transformation from the altitude and velocity state variables of three-dimensional flight mechanics to a new set of more desirable variables is found. The new variables provide a greater time-scale separation, decrease system coupling, and give better estimates of the fast-variable values along the reduced solution. One of the new variables is the often-used specific energy, whereas the other variable changes along a given trajectory, depending on the nature of the local reduced solution. Numerical examples are included.
Selection of Slow and Fast Variables in the Three-Dimensional Flight Dynamics
American Control Conference ; 1984 ; United States
1984-06-08
Miscellaneous
No indication
English
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