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 3 of 3 for “"Direct positioning"”.
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Integrity and attack-resilience of GPS-based positioning and timing: a Bayesian and measurement fusion approach
… accurate timing and meter level of accurate positioning. It has global coverage and is free for all users. The GPS positioning and timing service has some limitations. The positioning accuracy degrades in urban environments due to tall structures that block and reflect satellite signals. …
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Optimization methods for active and passive localization
… elements illuminate the targets from different directions. The signals emitted by the transmitters may differ in power and bandwidth. Such resources are often limited and distributed uniformly among the transmitters. However, previous studies based on the well known Cramer-Rao lower bound have …
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GPS multi-receiver direct position estimation for aerial applications
… In this regard, we propose Multi-Receiver Direct Position Estimation (MR-DPE), which operates a network of DPE receivers to enhance GPS measurement certainty in degraded signal environments. A DPE receiver directly estimates navigation solutions in the PVT domain with a maximum-likelihood …