Πλοήγηση ανά Συγγραφέας "Staridas, Alexios"

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  • Μικρογραφία εικόνας
    Τεκμήριο
    Ανάπτυξη αλγορίθμων για επεξεργασία δεδομένων αισθητήρων και προσδιορισμό θέσης πομπών.
    (ΕΛ.ΜΕ.ΠΑ., Σχολή Μηχανικών (ΣΜΗΧ), ΠΜΣ Πληροφορική και Πολυμέσα, 2023-10-17) Staridas, Alexios; Σταρίδας, Αλέξιος
    In the last years, localization has evolved into a topic of increasing scientific interest, since the urge to be able to detect a position at any time has become a matter of prime importance. Many applications nowadays use localization, including GPS positioning, mobile phone technologies and robotics. One of the main methods of localization – and the topic of this thesis – is triangulation. Triangulation is used extensively since it offers an efficient way to determine someone’s position just by taking bearings on them. The current thesis will be conducted on the area of transmitters’ range free localization using triangulation. In a wide area of interest (AOI), where many transmitters may operate, it is important for a Fixed Sensors Network (FSN) to be able to estimate the transmitters’ positions. If more than one transmitter operate in the AOI, then at least three sensors are needed to cover that area. In the case of obstacles/interference in the AOI, more than three sensors are needed for adequate coverage of the area. The sensors are organized over an area of several square kilometers, collecting data in real time. Algorithms need to be developed for the analysis and processing of the collected data, as well as the transmitter’s position estimation and projection on the map. The collected data needs to be analyzed, in order to find all high-intensity bearings corresponding to the transmitter. The data must then be used in triangulation algorithms, in order to find all triangulation areas of the transmitter’s potential position. Finally, using the triangulation areas, the transmitter’s position must be estimated and its geographical position must be projected on the map in real time. Following what has been described, the thesis’ structure is formed by the following stages: a) sensor data analysis/processing, b) triangulation areas’ determination and c) transmitter’s position estimation and its projection on the map.