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.
Results
Showing 1 to 20 of 2656 for “"Positioning"”.
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Human intelligible positioning
… new hybrid addressing scheme, Human Intelligible Positioning (HIP), which uses a metric addressing scheme as its substrate. Addresses in this metric addressing scheme are mapped to two-dimensional offsets within named coordinate systems. HIP addresses combine the easy memorability and …
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TaleBlazer : indoor positioning
… games could only be played outdoors. Indoor positioning is an active area of research. This thesis will explore and evaluate a variety of more sophisticated alternatives to an existing, simple indoor positioning scheme for TaleBlazer. None of the explored indoor positioning techniques were …
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Precise Point Positioning – The evolution of an alternative GNSS positioning solution
Precise Point Positioning (PPP) employs readily available Global Navigation Satellite System (GNSS) orbit and clock correction products to perform point positioning using a single GNSS receiver. Over the last 20 years, the New South Wales (NSW) state government has invested in Continuously …
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Positioning of wireless broadband
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996.
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Analysis of atmospheric delays and asymmetric positioning errors in the global positioning system
Abstract Errors in modeling atmospheric delays are one of the limiting factors in the accuracy of GPS position determination. In regions with uneven topography, atmospheric delay phenomena can be especially complicated. Current delay models used in analyzing GPS data from the Plate Boundary …
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Inventory positioning in modern retail
… means more complex problems of inventory positioning and demand fulfillment, but also an opportunity to influence their customers through the assortments they offer, especially online. In this thesis, we study two main challenges related to inventory positioning in omni-channel and provide …
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Autonomous adaptive acoustic relay positioning
… acoustic data transmission by adaptively positioning an autonomous mobile relay so as to learn and exploit spatial variations in channel performance. The acoustic channel is the main practical method of underwater wireless communication and improving channel throughput and reliability is …
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Cooperative Relative Positioning for Vehicular Environments
Fahrerassistenzsysteme sind ein wesentlicher Baustein zur Steigerung der Sicherheit im Straßenverkehr. Vor allem sicherheitsrelevante Applikationen benötigen eine genaue Information über den Ort und der Geschwindigkeit der Fahrzeuge in der unmittelbaren Umgebung, um mögliche Gefahrensituationen …
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WiFiPoz -- an accurate indoor positioning system
… to the innovative concept of an indoor positioning system. By analyzing different technologies and algorithms, this thesis concluded that, considering a trade-off between accuracy and cost, a Wi-Fi based Fingerprint method is proved to be the most promising approach to determine the …
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Crowdsourcing Mobile Data for Indoor Positioning
Indoor positioning is a key enabler for context-aware computing. Applications such as navigation, tracking, monitoring, spatial programming and location-based information sharing require the accurate and timely inputs of users' indoor positions. Signal fingerprinting, as a popular …
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Geodetic positioning systems using repeater satellites
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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Rubber bearings for precision positioning systems
… metal and rubber sheets as bearings in precision positioning systems. Such bearings have the potential to replace more conventional flexures fabricated for instance from metal. Rubber bearings also potentially have advantages in for example ease and low-cost of fabrication, overload robustness, …
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Inventory pre-positioning for humanitarian operations
… research examines the impact of inventory pre-positioning on humanitarian operations. The study identifies optimal locations for warehousing non-consumable inventories required for initial deployment of aid. These facility location problems are geometric optimizations using mean annual homeless …
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Strategic positioning in the telecommunications industry
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1997.
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Long Basline Ranging Acoustic Positioning System
… and aerial robots require an effective positioning system, like GPS to perform a wide variety of guidance, navigation and control operations. Sea and freshwater attenuate electromagnetic waves (sea water is worse due to higher conductivity) within very few meters of striking the water …
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Robot positioning error analysis and correction
… robots have been limited partly because of positioning errors. In this thesis, two causes of positioning errors are identified: link deflection and gear transmission errors. Positioning errors due to the effect of link deflection and gear transmission errors are discussed and an iterative …
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Highly Accurate Ultrasonic Positioning and Tracking Systems
… and the system infrastructure; and secondly, the positioning phase, that exploits the measured information to calculate the absolute or relative location coordinates of the target(s). So far the most widely used positioning system is the Global Positioning System (GPS). However, in a GPS system, …
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