Fixed Final Time Guidance
Guidance is the process by which an actual dynamical system is controlled to satisfy the final conditions while satisfying any path constraints imposed on the system. Examples of path constraints are control inequality constraints or state inequality constraints. Path constraints are usually difficult to handle in guidance so they are avoided by adding penalty terms to the performance index or by guiding relative to a reference or nominal path that satisfies the path constraints by some margin. Hence, many guidance problems fit into the format of the optimal control problem defined in Chapter 9, and this chapter can be considered as an application of the material in Chaps. 9 and 11.
KeywordsTransition Matrix Path Constraint Nominal Path Linear Quadratic Problem Optimal Guidance
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