Skylight Polarization Pattern Simulator Based on a Virtual-Real-Fusion Framework for Urban Bionic Polarization Navigation [PDF]
Sensors, 2023 In a data-driven context, bionic polarization navigation requires a mass of skylight polarization pattern data with diversity, complete ground truth, and scene information.
Qianhui Li +6 more
doaj +5 more sources
SkyPole-A method for locating the north celestial pole from skylight polarization patterns. [PDF]
Proc Natl Acad Sci U S A, 2023 True north can be determined on Earth by three means: magnetic compasses, stars, and via the global navigation satellite systems (GNSS), each of which has its own drawbacks. GNSS are sensitive to jamming and spoofing, magnetic compasses are vulnerable to magnetic interferences, and the stars can be used only at night with a clear sky.
Kronland-Martinet T +5 more
europepmc +5 more sources
An Evaluation of Skylight Polarization Patterns for Navigation [PDF]
Sensors, 2015 Skylight polarization provides a significant navigation cue for certain polarization-sensitive animals. However, the precision of the angle of polarization (AOP) of skylight for vehicle orientation is not clear.
Tao Ma +6 more
doaj +4 more sources
Solar Position Acquisition Method for Polarized Light Navigation Based on ∞ Characteristic Model of Polarized Skylight Pattern [PDF]
IEEE Access, 2020 Inspired by the use of polarized information for navigation behaviors in nature, many researchers have carried out a lot of researches on bionic polarized light navigation. Due to the complexity of the atmospheric radiation transmission process, there is
Bianbian Liu, Zhiguo Fan, Xianqiu Wang
doaj +4 more sources
Improved Models of Imaging of Skylight Polarization Through a Fisheye Lens [PDF]
Sensors, 2019 Researchers have found that some animals can use the skylight polarization pattern for navigation. It is also expected to use the skylight polarization pattern for human navigating in the near future.
Shaobo Sun +4 more
doaj +3 more sources
Design and optimization analysis of imaging system of polarized skylight pattern of full polarization [PDF]
Acta Physica Sinica, 2021 Full polarization imaging can obtain more information about target, which has a broad application prospect in the target detection, researches of atmospheric characteristics, and medical diagnosis. This paper develops an imaging system of polarized skylight pattern of full polarization for obtaining the information about full polarization rapidly ...
Cheng Wang +4 more
openaire +2 more sources
Rotation of skylight polarization during learning walks is necessary to trigger neuronal plasticity in Cataglyphis ants. [PDF]
Proc Biol Sci, 2022 Many animals use celestial cues for impressive navigational performances in challenging habitats. Since the position of the sun and associated skylight cues change throughout the day and season, it is crucial to correct for these changes.
Grob R +5 more
europepmc +2 more sources
Sky polarization pattern under multi-layer environment of atmosphere and sea fog
Frontiers in Physics, 2022 The vertical polarization distribution pattern of sea fog multilayer media and skylight in the atmosphere is explored. To change the complicated maritime environment, the simplified double layer structure of the atmosphere and sea fog is employed, and ...
Qiang Fu +13 more
doaj +2 more sources
Optics Express, 2023 The skylight polarization pattern contains rich information for navigation, meteorological monitoring, and remote sensing. In this paper, we propose a high-similarity analytical model by considering the influence of the solar altitude angle on the neutral point position variations for the distribution pattern of the polarized skylight. A novel function
Peifeng Pan +6 more
openaire +3 more sources
Real-time maritime skylight polarization pattern measurement and robust polarization navigation
Optics ExpressSkylight polarization patterns, generated by sunlight scattering in the Earth's atmosphere, serve as an under-utilized source of directional information for navigation. This study addresses the challenges of maritime polarization navigation, including vessel tilt, cloud interference, and structural obstructions, by developing a gyro-stabilized division
Shuai Li +5 more
openaire +2 more sources