Results 191 to 200 of about 195,439 (333)

A TCN-BiLSTM and ANR-IEKF Hybrid Framework for Sustained Vehicle Positioning During GNSS Outages. [PDF]

Sensors (Basel)
Niu S, Li J, Hu C, Li J, Zhang D, Feng K.   +5 more
europepmc   +1 more source

Optimizing unmanned aerial vehicle–based stand counts in soybean: Effects of flight timing, altitude, and analytical method

Agronomy Journal, Volume 118, Issue 1, January/February 2026.
Abstract The accurate estimation of soybean (Glycine max) stand establishment is essential for evaluating crop emergence and informing early‐season management practices. Recent advances in unmanned aerial vehicle (UAV) imagery and computer vision offer opportunities to automate plant population assessments; however, limited information exists on their ...
Salem Ermish, Rachel Vann, Jason Ward, Wesley Everman, Robert Austin   +4 more
wiley   +1 more source

Optimal Low-Cost MEMS INS/GNSS Integrated Georeferencing Solution for LiDAR Mobile Mapping Applications. [PDF]

Sensors (Basel)
Al-Shereiqi N, El-Diasty M, Al-Rawas G.
europepmc   +1 more source

An Enhanced Local Optimization Algorithm for GNSS Shadow Matching in Mobile Phones [PDF]

Xianggeng Han, Nijia Qian, Jingxiang Gao, Zengke Li, Y. Hu, Yang Liu, Fangchao Li   +6 more
openalex   +1 more source

Skin‐Like Airflow Odometry for Micro Aerial Vehicles Based on Distributed Thermal Anemometers

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
A novel bioinspired skin‐like airflow odometry system for micro aerial vehicles employs distributed thermal anemometers to enable motion estimation in GNSS‐denied environments. Computational fluid dynamics simulation validates sensor deployment feasibility, while a transformer‐enhanced gated recurrent unit network extracts high‐precision airflow ...
Weicheng Di, Shihao Dang, Zheng Gong, Jiahui Zhang, Jinwu Xiang, Yonggang Jiang, Daochun Li, Zhan Tu   +7 more
wiley   +1 more source

Evaluating GNSS infrastructure readiness for IGS contribution: the case of King Sejong Station, Antarctica. [PDF]

Sci Rep
Lee SJ, Yun HS, Yoon HM, Lee SH.
europepmc   +1 more source

TGCAT—A Tool to Analyse the Content of Sea Level Data Portals

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
TGCAT is an online tool (www.sonel.org/tgcat) to help sea level data providers, data aggregators, and data users to visualise available tide gauge datasets. It is aimed to improve data referencing and discoverability in the global tide gauge data centres. The code has been fully developed in Python and is open‐source.
Laurent Testut, Adrien Laval, Clémence Chupin, Mikaël Guichard, Begoña Pérez Gómez   +4 more
wiley   +1 more source

Robust Navigation in Multipath Environments Using GNSS/UWB/INS Integration with Anchor Position Estimation Toward eVTOL Operations. [PDF]

Sensors (Basel)
Osaka A, Tsujii T.
europepmc   +1 more source

Tropospheric Delay Correction of GNSS Signals for Satellite-Based Augmentation System

, 2007
Nobuhiko Takeichi, Takeyasu Sakai, Sounosuke Fukushima, Ken Ito   +3 more
openalex   +2 more sources

Risks of Time and Chronology as an Underpinning Infrastructure for Critical Systems: Emerging Chronorisks and Chronosecurity Needs

Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT Time and chronology form the invisible architecture upon which modern civilization depends, governing synchronization across markets, power grids, communication networks, transportation, and defense. Yet, this shared temporal framework, engineered through atomic clocks, satellites, and digital synchronization, faces growing vulnerabilities ...
Bilal M. Ayyub
wiley   +1 more source