Results 11 to 20 of about 107,602 (291)
Sensors, 2017 Theperformanceoftheglobalnavigationsatellitesystem(GNSS)canbeenhancedsignificantly by introducing the inter-satellite links (ISL) of a navigation constellation.
Zhijun Meng, Jun Yang, Xiye Guo, Mei Hu
doaj +2 more sources
Semantic Table-of-Contents for Efficient Web Screen Reading. [PDF]
Proc Symp Appl Comput, 2021 Navigating back-and-forth between segments in webpages is well-known to be an arduous endeavor for blind screen-reader users, due to the serial nature of content navigation coupled with the inconsistent usage of accessibility enhancing features such as ...
Ferdous J, Uddin S, Ashok V.
europepmc +2 more sources
Remote Sensing, 2021 With the rapid development of satellite technology and the need to satisfy the increasing demand for location-based services, in challenging environments such as indoors, forests, and canyons, there is an urgent need to improve the position accuracy in ...
Lvyang Ye +5 more
semanticscholar +1 more source
IEEE Transactions on Intelligent Vehicles, 2023 Intelligent vehicles need high bandwidth wireless communication links for safety and commercial communication. However, the new generations of wireless communication networks (WCNs), such as quasi-optic millimeter-wave (mmWave) (5G) and visible light ...
Mohsen Eskandari +3 more
semanticscholar +1 more source
Joint Timekeeping of Navigation Satellite Constellation with Inter-Satellite Links
Italian National Conference on Sensors, 2020 As a system of ranging and positioning based on time transfer, the timekeeping ability of a navigation satellite constellation is a key factor for accurate positioning and timing services. As the timekeeping performances depend on the frequency stability
Leyuan Sun +5 more
semanticscholar +1 more source
Quantum-limited optical time transfer for future geosynchronous links [PDF]
Nature, 2022 Laser-based time transfer with near quantum-limited acquisition and timing is demonstrated that can support femtosecond precision over 102 dB link loss, more than sufficient for future time transfer to geosynchronous orbits for future optical clock ...
Emily D. Caldwell +7 more
semanticscholar +1 more source
Acta Geodaetica et Geophysica, 2020 Inter-Satellite Links (ISLs) are intended to improve precision of orbit determination and satellite clock estimation. The ISLs provide a precise pseudorange measurements between satellites in a specific constellation.
T. Kur, T. Liwosz, M. Kalarus
semanticscholar +1 more source
IEEE Transactions on Automation Science and Engineering, 2023 The reconfigurable intelligent surface (RIS) technology has gained increased attention for improving the performance and efficiency of the fifth-generation (5G) millimeter-wave (mmWave) wireless communication by obviating the propagation and blockage ...
Mohsen Eskandari, A. Savkin, Wei Ni
semanticscholar +1 more source
AIChE Journal, Volume 69, Issue 2, February 2023., 2023 Abstract Nitrates from agricultural wastewater are harmful to human health and result in eutrophication. Several emerging electrochemical technologies have been developed independently to enable efficient recovery and recycling of nitrate waste; however, it remains unclear whether the implementation of such combined technologies can be economically ...
Sharmila Samaroo, David P. Hickey
wiley +1 more source
An Inter-Ridge Navigation Path Extraction Method Based on Res2net50 Segmentation Model
Agriculture, 2023 The extraction of navigation lines plays a crucial role in the autonomous navigation of agricultural robots. This work offers a method of ridge navigation route extraction, based on deep learning, to address the issues of poor real-time performance and ...
Xin Jin +5 more
semanticscholar +1 more source