Results 111 to 120 of about 47,243 (312)

Probing the oceanic precipitable water vapor evolution characteristics during the 2020 tropical cyclone Maysak using the GNSS radio occultation and satellite microwave radiometry data

, 2023
China Satellite Navigation Conference (CSNC 2021) Proceedings, 22nd-25th May, 2021 in Nanchang, China.202305 bckwAccepted ManuscriptRGCOthersNational Natural Science Foundation of China; Emerging Frontier Area (EFA) Scheme of Research Institute for ...
Liu, Z, Yu, S
core   +1 more source

Asymmetrically Coordinated Dual‐Atom Manganese Contrast Agents Enabling High‐Efficiency T1 Enhanced MRI for Precise Tumor Visualization

Advanced Science, EarlyView.
A novel dual‐atom manganese MRI contrast agent (Mn‐BN) with a unique asymmetric coordination geometry provided a promising platform for sensitive and specific tumor imaging. In mice model, Mn‐BN nanoparticles precisely functioned as both a primary tumor‐specific enhancer in subcutaneous models and a hepatocyte‐specific agent in liver metastases models ...
Ding Yang, Qing‐Yang Li, Jianli Liang, Gengyou Li, Nan Sun, Qianqian Song, Haitao Zhu, Xiaoting Li, Zechuan Li, Jiankai Dong, Weisheng Guo, Yafang Xiao, Chun‐Sing Lee, Ying‐Shi Sun   +13 more
wiley   +1 more source

Fast and Reliable Network RTK Positioning Based on Multi-Frequency Sequential Ambiguity Resolution under Significant Atmospheric Biases

Remote Sensing
The positioning performance of the Global Navigation Satellite System (GNSS) network real-time kinematic (NRTK) depends on regional atmospheric error modeling.
Hao Liu, Ziteng Zhang, Chuanzhen Sheng, Baoguo Yu, Wang Gao, Xiaolin Meng   +5 more
doaj   +1 more source

Satellite Navigation Spoofing Interference Detection and Direction Finding Based on Array Antenna. [PDF]

Sensors (Basel), 2023
Yang H, Jin R, Xu W, Che L, Zhen W.
europepmc   +1 more source

Analysis of GPS-Based Relative Navigation Schemes for Earth Observation Missions Relying on Cooperating Satellites

, 2009
In this paper performance of Carrier-phase Differential GPS (CDGPS) for relative navigation in applications where the inter-satellite distance highly varies along the orbit is investigated.
GRASSI, MICHELE, U. TANCREDI, RENGA, ALFREDO   +2 more
core  

Satellite-Ground Link Planning for LEO Satellite Navigation Augmentation Networks

IEEE Access, 2019
Navigation augmentation using low-orbit satellites is a low-cost, high-precision technique. Efficient transmission of data between the satellites and ground station is a prerequisite to ensure that this technique can be achieved.
Zhenwei Hou, Xianqing Yi, Yaohong Zhang, Yanghongyi Kuang, Yue Zhao   +4 more
semanticscholar   +1 more source

Single‐Atom Intercalation‐Driven Topological Ferroelectric Metal for High‐Performance Hydrogen Evolution Reaction

Advanced Science, EarlyView.
Single‐atom Cu intercalation enables porous AB3 monolayers to integrate ferroelectricity, metallicity, topology, and hydrogen evolution catalysis in one platform. Switchable FE polarization modulates work function and hydrogen adsorption thermodynamics, providing an electrically controllable route to activate basal‐plane HER activity in topological ...
Rongxuan Lu, Jian Zhang, Jialin Gong, Wenxian Li, Gang Zhang   +4 more
wiley   +1 more source

SAR deceptive jamming target-detection method based on multi-angle SAR images

The Journal of Engineering, 2019
Deceptive jamming is an effective jamming method for synthetic aperture radar (SAR). Time-delay repeater jamming, which is an important method of deceptive jamming because of its simplicity and effectiveness, can generate false targets in the SAR image ...
Gen Li, Zengliang Li, Zengliang Li, Tianyi Zhang, Meng Ke, Zegang Ding   +5 more
doaj   +1 more source

Performance Assessment of Navigation Signals in Realistic Multipath Environments

, 2008
A major error source within global navigation satellite systems, such as the Global Positioning System or the future European satellite navigation system Galileo, comes from multipath, the reception of additional signal replica due to reflections caused ...
Artaud, Geraldine, Krach, Bernhard
core  

Forecasting Parameters of Satellite Navigation Signal through Artificial Neural Networks for the Purpose of Civil Aviation

International Journal of Aerospace Engineering, 2019
Navigation is a key element influencing fluent, rapid, and safe transport of people and goods. During the last years, special attention was paid to satellite navigation, which is a part of radionavigation where positioning is done thanks to artificial ...
K. Krzykowska, M. Krzykowski
semanticscholar   +1 more source