Military aircraft must often fly in close proximity to terrain. In this article, optimal terrain following is considered as a minimax optimal control problem, which is solved using direct transcription of the continuous optimal control problem. Within a very general framework for solving such problems, we transform the nonsmooth cost function into a constrained nonlinear programming problem. In the formulation, we solve for optimal collision avoidance manoeuvres. To ensure smooth derivatives of general three dimensional terrain, it is approximated using B-splines. A receding horizon tracking controller tracks the optimal trajectories with disturbances to the aircraft model and initial conditions.
@article{1071,
title = {Optimal three dimensional aircraft terrain following and collision avoidance},
journal = {ANZIAM Journal},
volume = {49},
year = {2007},
doi = {10.21914/anziamj.v47i0.1071},
language = {EN},
url = {http://dml.mathdoc.fr/item/1071}
}
Sharma, T.; Williams, P.; Bil, C.; Eberhard, A. Optimal three dimensional aircraft terrain following and collision avoidance. ANZIAM Journal, Tome 49 (2007) . doi : 10.21914/anziamj.v47i0.1071. http://gdmltest.u-ga.fr/item/1071/