Results 21 to 30 of about 14,328 (252)
Remote Sensing, 2023 As the Global Navigation Satellite System (GNSS) is widely used in all walks of life, the signal structure of satellite navigation is open, and the vulnerability to spoofing attacks is also becoming increasingly prominent, which will seriously affect the
Xiao Chen +4 more
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Aerospace, 2021 In this study, dual-satellite lunar global navigation systems that consist of a constellation of two navigation satellites providing geo-spatial positioning on the lunar surface were compared.
Toshiki Tanaka +3 more
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Global capabilities of BeiDou Navigation Satellite System
Satellite Navigation, 2020 The BeiDou Navigation Satellite System (BDS) has completed the constellation deployment and started to provide global services. After achieving the capabilities of global coverage, global first-class accuracy for Positioning, Navigation and Timing (PNT),
Jun Lu, Xia Guo, Chengeng Su
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ISPRS International Journal of Geo-InformationSlant range geometry plays a crucial role in interpreting synthetic aperture radar (SAR) observations, especially in converting line-of-sight (LOS) surface deformations to actual vertical subsidence. This paper proposes a new conversion model to retrieve
Jie Liu +4 more
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Infrastructure camera calibration with GNSS for vehicle localisation
IET Intelligent Transport Systems, 2023 Intelligent transportation and smart city applications are currently on the rise. In many applications, diverse and accurate sensor perception of vehicles is crucial.
Risto Ojala +3 more
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A Minimal Solution for Binocular Camera Relative Pose Estimation Based on the Gravity Prior
Remote SensingHigh-precision positioning is the foundation for the functionality of various intelligent agents. In complex environments, such as urban canyons, relative pose estimation using cameras is a crucial step in high-precision positioning. To take advantage of
Dezhong Chen +3 more
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International Journal of Distributed Sensor Networks, 2019 People have to move between indoor and outdoor frequently in city scenarios. The global navigation satellite system signal cannot provide reliable indoor positioning services.
Deyue Zou +7 more
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A Minimal Solution Estimating the Position of Cameras with Unknown Focal Length with IMU Assistance
DronesDrones are typically built with integrated cameras and inertial measurement units (IMUs). It is crucial to achieve drone attitude control through relative pose estimation using cameras. IMU drift can be ignored over short periods.
Kang Yan +4 more
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Comprehensive assessment of real-time precise products from IGS analysis centers
Satellite Navigation, 2022 Real-Time Precise Point Positioning (RT-PPP) has been one of the research hotspots in GNSS (Global Navigation Satellite System) community for decades. Real-time precise products of satellite orbits and clocks are the prerequisite for RT-PPP.
Bofeng Li +4 more
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Analysis of the Dihedral Corner Reflector’s RCS Features in Multi-Resource SAR
Applied SciencesArtificial corner reflectors are widely used in the vegetated landslide for time series InSAR monitoring due to their permanent scattering features. This paper investigated the RCS features of a novel dihedral CR under multi-resource SAR datasets. An RCS
Jie Liu +5 more
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