Abstract
In this paper, a methodology to control the surface error ona Doppler antenna using the concept of a variable geometry truss structure isproposed. A genetic algorithm is used to find the optimal location and numberof actuators with the objective to minimize the construction and runtime costs.The optimization also takes into account the limitations in actuation. Apiezoceramic-based actuator is used to demonstrate the effectiveness of themethodology. A simple illustration of 2D trusses, which could form a part of aDoppler antenna structure, is used to show the efficacy of the method. Ananalysis of the effectiveness of such a design is presented. The influence ofthe variables in the problem is examined and observations made. This studyconcludes that the smart antenna concept is a viable, feasible and effectiveoption in design.
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