Optimal control laws for aircraft tracking

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Title: Optimal control laws for aircraft tracking
Author: Weerasinghe, Dharshana
Abstract: The aim of this research is to find the most satisfactorily method of controlling the trajectory of an aircraft that passes through a set of designated points at specific times in two dimensional space . Generally , optimal control theory yield controls which are minimal with respect to a cost function and the aircraft is controlled using this minimizing control law . Some of the more widely used cost functions are /Q V ? dt and J^ (u' ) dt where u{t ) is the desired control . In this thesis we will define a parameterized cost function which is a linear combination of the above two cost functions and show that for particular values of the parameter , the new cost function yield smoother paths and requires control functions of lesser magnitude . Several numerical and curve -fitting examples are given to illustrate advantages of this new cost function . Finally , this cost function will be applied to two very special cases to analyze the the advantages over the minimal energy cost function .
URI: http : / /hdl .handle .net /2346 /9548
Date: 1999-05


Weerasinghe, Dharshana Optimal control laws for aircraft tracking. Doctoral dissertation, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /9548 .

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