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2D indoor localization system with an UWB multistatic radar

Abstract : Nowadays, the ability to track objects and people is crucial for a huge number of applications, such as medical applications (monitoring of patients) or independent applications that require a very high accuracy and resolution in the positioning process. Therefore, the main scientific objective of this thesis is to develop a tracking system using an UWB multistatic radar system to provide realtime 2D location of transponders or active tags. The localization is carried out in polar coordinates (distance and azimuth angle) by merging the interferometry and goniometry principles, assuming a propagation channel with a direct path, or LoS between the station and the target. The designed ILS incorporates a hybrid technique by combining the duplex UWB and the Phase Correlation methods for the radial-distance and the azimuth angle estimates. The proposed ILS consists of two main components, a transmitter /receiver (transceiver) station serving as a LBS and an AT. The LBS has one transmitting channel and two identical and independent receiving channels. The localization is performed by sending UWB pulses towards the AT which acts as an active transponder and retransmits in turn the received signal back to the LBS upon delaying it. This designed ILS is expected to offer, under LoS conditions, a position estimation with high accuracy and resolution while maintaining low system complexity. The system works with a single anchor, and simultaneously addresses indoor challenges such as multipaths, strong signal attenuations, reflections, etc.
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Submitted on : Wednesday, March 11, 2020 - 3:12:08 PM
Last modification on : Wednesday, June 15, 2022 - 9:03:55 PM
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  • HAL Id : tel-02505477, version 1


Nour Awarkeh. 2D indoor localization system with an UWB multistatic radar. Electromagnetism. Université Paris-Saclay, 2019. English. ⟨NNT : 2019SACLT041⟩. ⟨tel-02505477⟩



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