Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Cross-Track Error"”.
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Autonomous Vehicle Pose Estimation in GNSS-Denied Areas Using Cross-Track Error Measurements
… novel approach to vehicle pose estimation using cross-track error (CTE) measurements as supplemental inputs for GNSS denied environments. The proposed method leverages CTE, a measure of lateral deviation from a desired trajectory, to estimate the vehicle’s position and orientation in real-time …
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High performance path following for marine vehicles using azimuthing podded propulsion
… of such vessels allow the time constant of cross-track error response to be greatly reduced. Additionally these vessels can follow course changes and waypoints more precisely than ruddered vessels.
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Minimizing current effects on autonomous surface craft operations in Singapore harbor
… ASCs under the influence of currents. The first, Cross-Track Error Minimization, ensures that the vehicle follows a straight-line trajectory between two waypoints under the effects of surface waves and currents. The second controller, Time-Optimal, uses Zermelo's problem and function minimization …
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An Airspace Simulator for Separation Management Research
… and autopilot flight control with an average cross track error of 0.05 nmi for waypoint-defined routes in variable wind-fields. Trajectories are computed using the BADA v3.8 tabulated database to model the performance of 318 aircraft types. The simulator was demonstrated with up to 4000 total …
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A Collection of Computer Vision Algorithms Capable of Detecting Linear Infrastructure for the Purpose of UAV Control
… resulted in a classification accuracy of 96.6% across a 62 image dataset collected at Kentland Farm. A trajectory can then be generated by fitting the classified road pixels to polynomial curves. These trajectories can even be used to take specific turns at intersections based on a user defined …