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 7 of 7 for “"navigation technique"”.
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Angles-only navigation technique for maneuver-free spacecraft proximity operations
The technique of angles-only navigation consists of a single surveyor making line-of-sight observations of a target to deduce a relative navigation state from a sequence of angle measurements. Historically, angles-only navigation has been impeded by a range ambiguity problem in its many …
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Action-Inspired Approach to Design of Navigation Techniques for Effective Spatial Learning in 3-D Virtual Environments
Navigation in large spaces is essential in any environment (both the real world and the virtual world) because one of the human fundamental needs is to know the surrounding environment and to freely navigate within the environment. For successful navigation in large-scale virtual environments …
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Novel text entry and mobile interaction techniques for Arabic language users
… to improve mobile data entry though better form navigation and improved Arabic text entry. Four improvements were taken into consideration in sequence: (1) minimizing large forms to fit small mobile device screens and easing form navigation process, (2) optimizing Arabic keyboard layout to suit …
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Autonomous ground-based robotic navigation for an agricultural row crop environment
… presented in this thesis is focused on the navigation technique for an autonomous ground-based robotic system for use in an agricultural row crop environment. The performance of the navigational system was evaluated by measuring the offset of the robot’s path to a predetermined path. It is …
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A*-Based Path Planning for an Unmanned Aerial and Ground Vehicle Team in a Radio Repeating Operation
… non-line-of-sight conditions and naive navigation strategies can cause substantial degradations in radio link quality. Therefore, this thesis incorporates an unmanned aerial vehicle as a radio repeating node and presents a path planning strategy to cooperatively navigate the vehicle team …
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Utilizing the notion of removable blocks to enhance program slicing algorithms
Program slicing is a program decomposition technique that transforms a large program into a smaller one that contains only statements relevant to the computation of a selected function. Applications of program slicing can be found in software testing, debugging and maintenance where program slicing …
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Contributions to the foundations of a safety case for the use of GNSS in railway environments
… but the advancement of this increasingly popular navigation technique into safety of life rail applications has been hindered by the unknown level of measurement error caused by the local rail environment, especially that due to multipath. Current state of the art receiver technologies are …