2023
DOI: 10.1109/access.2023.3282786
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Low-Cost GNSS Simulators With Wireless Clock Synchronization for Indoor Positioning

Abstract: In regions where global navigation satellite systems (GNSS) signals are unavailable, such as underground areas and tunnels, GNSS simulators can be deployed for transmitting simulated GNSS signals. Then, a GNSS receiver in the simulator coverage outputs the position based on the received GNSS signals (e.g., Global Positioning System (GPS) L1 signals in this study) transmitted by the corresponding simulator. This approach provides periodic position updates to GNSS users while deploying a small number of simulato… Show more

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Cited by 10 publications
(2 citation statements)
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“…The continuous development of technology made possible today the multi-GNSS (Global Navigation Satellite System) constellations (about 140 GNSS satellites in space in 2020 managed by eight different analysis centers [9]), significantly improving performance, satellite visibility, the dilution of precision, accuracy, spatial geometry, redundancy and reliability [10]. It is significant to underline that, despite the GNSS requiring high-accuracy time information, it is used successfully in many scientific (studies of the Earth atmosphere, snow depth, soil moisture and terrestrial water storage variation) [11] and practical applications (the positioning accuracy of a smartphone), with the advantages of continuous operation, a low cost, operation in all-weather conditions, a high accuracy and a high temporal resolution [12]. Examples of temporal cadences are as follows:…”
Section: The Social Implications Of the Measurement Of Timementioning
confidence: 99%
“…The continuous development of technology made possible today the multi-GNSS (Global Navigation Satellite System) constellations (about 140 GNSS satellites in space in 2020 managed by eight different analysis centers [9]), significantly improving performance, satellite visibility, the dilution of precision, accuracy, spatial geometry, redundancy and reliability [10]. It is significant to underline that, despite the GNSS requiring high-accuracy time information, it is used successfully in many scientific (studies of the Earth atmosphere, snow depth, soil moisture and terrestrial water storage variation) [11] and practical applications (the positioning accuracy of a smartphone), with the advantages of continuous operation, a low cost, operation in all-weather conditions, a high accuracy and a high temporal resolution [12]. Examples of temporal cadences are as follows:…”
Section: The Social Implications Of the Measurement Of Timementioning
confidence: 99%
“…As an example, Ref [155]. is a large and sophisticated test-bed for testing GNSS position and timing authentication methods.Practical utilities of GNSS signal regeneration include the simulation of diverse GNSS scenarios and, for instance, providing indoor GNSS positioning: Ref [158]. describes the use of multiple GNSS signal regenerators, synchronized wirelessly with a computer server, to broadcast GNSS signals received by outdoor antennas into indoor environments where GNSS signals are otherwise unavailable.…”
mentioning
confidence: 99%