Results 91 to 100 of about 2,220 (199)

Long‐Range Time‐Correlated Single‐Photon Counting Lidar 3D‐Reconstruction From a Moving Ground Vehicle

open access: yesJournal of Field Robotics, Volume 43, Issue 2, Page 1178-1192, March 2026.
ABSTRACT Time‐correlated single‐photon counting (TCSPC) lidar enables high‐resolution 3D imaging at kilometer range. While previous works have covered long range TCSPC 3D imaging from either stationary or airborne platforms, this is, to the best of our knowledge, the first attempt that use a moving ground vehicle. Fusing measurements taken at different
Hannes Ovrén   +2 more
wiley   +1 more source

Orbit and clock products for quad-system satellites with undifferenced ambiguity fixing approach

open access: yesSatellite Navigation
Integer Ambiguity Resolution (IAR) can significantly improve the accuracy of GNSS Precise Orbit Determination (POD). Traditionally, the IAR in POD is achieved at the Double Differenced (DD) level.
Jiaqi Wu   +6 more
doaj   +1 more source

A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb   +5 more
wiley   +1 more source

Addressing ecological challenges from a quantum computing perspective

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 3, Page 632-649, March 2026.
Abstract With increased access to data and the advent of computers, the use of statistical tools and numerical simulations is becoming commonplace for ecologists. These approaches help improve our understanding of ecological phenomena and their underlying mechanisms in increasingly complex environments.
Maxime Clenet   +2 more
wiley   +1 more source

Distributional Cues in Construction Acquisition: A Comparative Study of Native and Nonnative English Speakers Using the As‐Predicative Construction

open access: yesLanguage Learning, Volume 76, Issue 1, Page 67-102, March 2026.
Abstract This study investigates how distributional cues are integrated into the mental representation of the as‐predicative construction by English native and nonnative speakers, drawing on associative learning theory. We examined speakers’ constructional retrieval when given a verbal cue (Experiment 1) and their verb retrieval when given a ...
Ivana Domazetoska, Helen Zhao
wiley   +1 more source

Integer ambiguity validation through machine learning for precise point positioning

open access: yesSatellite Navigation
The discrimination test of ambiguity resolution, also known as ambiguity validation, is a vital procedure to quantify the reliability of Global Navigation Satellite System (GNSS) ambiguity-fixed solutions. Several well-known tests, including the R-ratio,
Jiang Guo, Jianghui Geng
doaj   +1 more source

Adaptive blind image deblurring and denoising

open access: yesScandinavian Journal of Statistics, Volume 53, Issue 1, Page 413-441, March 2026.
Abstract Blind image deblurring aims to reconstruct the original image from its blurred version without knowing the blurring mechanism. This is a challenging ill‐posed problem because there are infinitely many possible solutions. The ill‐posedness is further exacerbated if the blurring mechanism depends on the pixel location.
Yicheng Kang   +2 more
wiley   +1 more source

Effect of phase centre variation on tropospheric delay in PPP‐AR with low‐cost global navigation satellite systems receiver and antenna

open access: yesIET Radar, Sonar & Navigation
As low‐cost global navigation satellite systems receiver and antenna become increasingly prevalent for water vapour monitoring, precise millimetre‐level characterisation of instrument biases is crucial for maintaining measurement accuracy and reliability.
Jizhong Wu, Xiaoying Wang, Hongyang Ma
doaj   +1 more source

Analysis and Simulations of LAMBDA Integer Ambiguity Resolution Algorithm [PDF]

open access: yesProceedings of the 2018 3rd International Conference on Control, Automation and Artificial Intelligence (CAAI 2018), 2018
Shuyan Ni, Naiping Cheng, Shengge Zhang
openaire   +1 more source

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