Abstract
Abstract This work presents an optical flow composite guidance strategy for UAV navigation in unknown outdoor environments while seeking a predefined goal point. The proposed guidance logic is based on the relative optical flow in the right, left, and center regions of image. The resulting guidance strategy command uses balance and inverse strategies to navigate through different obstacle scenarios. Simulation studies are carried out in 3 D environment created in Virtual Reality Modelling Languages toolbox, MATLAB ® . In terms of initial heading and control efforts, the proposed composed strategy shows a better performance as compared to individual balance and inverse strategies.
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