Results 81 to 90 of about 13,896,765 (214)

Concept for an Onboard Integrated PNT Unit [PDF]

, 2011
A robust electronic position, navigation and timing system (PNT) is considered as one of the core elements for the realization of IMO-s (International Maritime Organization) e-Navigation strategy.
Ziebold, Ralf, Dai, Zhen, Noack , Thoralf, Engler, Evelin   +3 more
core  

Drivers of Precision Agriculture Adoption in Italian Viticulture

Applied Economic Perspectives and Policy, Volume 48, Issue 4, Page 1258-1271, September 2026.
ABSTRACT This study examines the main drivers influencing the adoption of two types of precision farming technologies in the viticultural sector: Decision Support Systems (DSSs) and Variable Rate Technologies (VRTs). We apply a partial proportional odds model and find that socio‐demographic characteristics are not significant determinants of adoption ...
Olimpia Fontana, Linda Arata, Margherita Muzzillo, Paolo Sckokai   +3 more
wiley   +1 more source

Predictive models of seed yield in intermediate wheatgrass (Thinopyrum intermedium): The added value of a time series of multispectral imagery in semiarid environments

Agronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract Accurate estimation of seed yield in perennial grains like Thinopyrum intermedium (intermediate wheatgrass [IWG]) remains a challenge due to high interannual and spatial variability of this important trait. We evaluated the potential of before‐harvest unmanned aerial vehicle (UAV)‐derived multispectral vegetation indices to predict IWG seed ...
Claire Spickermann, Efrain Duarte, Steve Larson, Zayne Maughan, Alexander Hernandez   +4 more
wiley   +1 more source

Blind Adaptive Beamformer Based on Orthogonal Projections for GNSS [PDF]

, 2012
The quality of the ranging data provided by a global navigation satellite systems (GNSS) receiver largely depends on the synchronization error, that is, on the accuracy of the propagation time-delay estimation of the line-of-sight (LOS) signal.
Noll, Tobias G., Meurer, Michael, Antreich, Felix, Sgammini, Matteo, Kurz, Lothar   +4 more
core  

Applied Numerical Modelling of Landscape Evolution in Anthropogenic Landscapes: A Systematic Review

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
This systematic review examines how landscape evolution models have been applied to analyse long‐term change in anthropogenic landscapes. The review evaluates modelling approaches, applications, limitations and key knowledge gaps to assess the potential of these models for long‐term landscape and risk management.
Vinuri Piyathilake, Matthew W. Hughes, Matthew Wilson   +2 more
wiley   +1 more source

Safety arguments for next generation location aware computing [PDF]

, 2010
Concerns over the accuracy, availability, integrity and continuity of Global Navigation Satellite Systems (GNSS) have limited the integration of GPS and GLONASS for safety-critical applications.
C.M. Holloway, Holloway, C.M., C.W. Johnson, Johnson, Chris, Johnson, C.W.   +4 more
core   +1 more source

Multidimensional visualization analysis based on large-scale GNSS data

Open Astronomy
With the deployment of global navigation systems such as GPS, GLONASS, GALILEO, and BeiDou, and the construction of the global observation network, global navigation satellite system (GNSS) data have greatly expanded. Traditional relational databases and
Wang Jingyan, Wang Ronghui, Bo Zhenyong, Li Hengnian, Wang Chong, Fang Yanan   +5 more
doaj   +1 more source

High Precision GNSS Guidance for Field Mobile Robots

International Journal of Advanced Robotic Systems, 2012
In this paper, we discuss GNSS (Global Navigation Satellite System) guidance for field mobile robots. Several GNSS systems and receivers, as well as multiple measurement methods and principles of GNSS systems are examined.
Ladislav Jurišica, František Duchoň, Dušan Kaštan, Andrej Babinec   +3 more
doaj   +1 more source

Software receiver design for GNSS-R using multiple GNSS satellites as transmitters

The Journal of Engineering, 2019
A novel global navigation satellite system-reflectometry (GNSS-R) software receiver and its preliminary experimental results are presented in this study.
Shuzhu Shi, Shiwei Wang, Tao Li
doaj   +1 more source

Bespoke Precision Agriculture for Small‐Scale Farming in Sub‐Saharan Africa: Defining Potential Benefits and Pathways

Food and Energy Security, Volume 15, Issue 5, September/October 2026.
ABSTRACT Precision agriculture (PA) holds enormous potential for smallholder farmers in sub‐Saharan Africa (SSA), where agriculture remains central to economic development, employing more than half of the adult population and contributing significantly to GDP. However, adoption rates remain low.
Kwame Agyei Frimpong, Yaw Sarfo, Isaac Kwasi Asante, Kwadwo A. Dompreh, Edwin W. Harris, Frank Kumi, James Lowenberg‐DeBoer, Paula A. Misiewicz, Alexander Tetteh Kwasi Nuer, Sven Peets, Andrew Wilcox, Vincent O. Aduramigba‐Modupe, Karl Behrendt   +12 more
wiley   +1 more source