Search for dissertations about: "Global navigation satellite system"
Showing result 6 - 10 of 33 swedish dissertations containing the words Global navigation satellite system.
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6. Multi-Agent Mission Planning and Execution for Small Autonomous Underwater Vehicles
Abstract : Our planet is mostly covered in water, most of it still unexplored.In order to understand our environment better, oceanographers have been mapping and monitoring these waters using ship-mounted sensors and wired vehicles with limited range compared to the vastness of the oceans. READ MORE
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7. Dude, Where's My Car? Cellular Navigation for Autonomous Driving
Abstract : Position and direction estimation is useful for numerous engineering applications for commercial, scientific, and military purposes. Technology that fuses observations of signals broadcast by Global Navigational Satellite Systems (GNSS) with inertial measurements is standard for electronic devices, but this requires at least a periodically unobstructed view of the sky to perform reliably. READ MORE
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8. Time and Frequency Transfer using Passive Techniques in Active Fiber Optic Networks
Abstract : For the modern society, high precision time and frequency transfer have become crucial since a large number of systems, such as telecommunication systems, require precise and stable synchronization. Electric power companies use synchronized systems for taking stability measurements and searching for errors in their networks. READ MORE
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9. Frequency Transfer Techniques and Applications in Fiber Optic Communication Systems
Abstract : Modern society is dependent on communications and the developments of these increases constantly through a seemingly endless demand for communication services and thereby synchronization and time. This is confirmed by a vast range of research on communications, irrespective of technology and protocol. READ MORE
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10. Measuring and modelling variations in the distribution of atmospheric water vapour using GPS
Abstract : Turbulence introduce variations in the refractive index of air, which in turn result in fluctuations in the phase and amplitude of radio signals propagating through the atmosphere. Most important are the variations due to fluctuations in the water vapour field. READ MORE