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 10 of 10 for “"Multilateration"”.
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Deep Learning-Enhanced Autonomous Aerial and Ground Robotics Using UWB and Lidar in GNSS-Denied Environments
… Error (MAE) by 0.2 meters compared to baseline multilateration methods and achieves a 0.3-meter MAE reduction compared to two-factor pose graph methods. Further, the DeepCovPG framework is developed, combining a Variational Autoencoder (VAE) with a Long Short-Term Memory (LSTM) network to …
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Intelligent energy efficient localisation in wireless sensor networks
… Thirdly, we give a new technique for solving multilateration equations and show that the overdetermined system of equations resulting from multilateration can be reduced to a pair of simultaneous equations which can then be solved using conventional techniques, such as Cramer's rule. Fourthly, …
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Indoor Positioning Using Acoustic Pseudo-Noise Based Time Difference of Arrival
… or receiver, extracts TDoA information and uses multilateration to calculate its position. The proposed IPS utilizes sound waves since they travel much slower compared to electromagnetic waves, allowing for easier measurements. Additionally, the audible spectrum has a large availability of low …
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Attenuation Field Estimation Using Radio Tomography
… Because the traditional failing of RSS-based multilateration is ranging error due to attenuating objects, RTI has great potential for improving the accuracy of these estimates if shadowing objects are accounted for. In this thesis, these two problems will primarily be studied. A comparison …
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Performance evaluation of a spread spectrum local area position location system
… time, phase error distributions of hyperbolic multilateration systems in multipath environments have been studied. The computer simulation tools which have been developed and verified experimentally can be used to analyze the performance of future radio position location systems.
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Intelligent Processing in Wireless Communications Using Particle Swarm Based Methods
… differentiation, NLOS range error mitigation and multilateration problems respectively. Third, a PSO based search method is proposed to find optimal orthogonal code sets to reduce the inter carrier interference effects in an frequency redundant OFDM system. Fourth, a PSO based phase optimization …
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ILoViT: Indoor Localization via Vibration Tracking
… gait and characteristics of footstep-derived multilateration. The Virginia Polytechnic Institute and State University's College of Engineering recognized this dissertation research with the Paul E. Torgersen Graduate Student Research Excellence Award.
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Energy-based Footstep Localization using Floor Vibration Measurements from Accelerometers
This work addresses the problem of localizing an impact in a dispersive medium (waveguide) using a network of vibration sensors (accelerometers), distributed at various locations in the waveguide, measuring (and detecting the arrival of) the impact-generated seismic wave. In particular, the last …
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Practical investigations in robot localization using ultra-wideband sensors
Made available in DSpace on 2021-09-17T01:13:41Z (GMT). No. of bitstreams: 3 WRIGHT-THESIS-2021.pdf: 45609799 bytes, checksum: 439b4bdb74e822cbda9343111030ecba (MD5) THESIS_NAWW.docx: 469786325 bytes, checksum: 3836a8b433cc05dd39b21ca875405ae8 (MD5) LICENSE.txt: 4212 bytes, checksum: …