Results 61 to 70 of about 7,274 (218)

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, Volume 43, Issue 7, Page 4382-4401, October 2026.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, Volume 43, Issue 7, Page 4603-4623, October 2026.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Outracing a National Level Model Racing Car Champion: A Hybrid Model‐Based Data‐Driven Approach

Journal of Field Robotics, Volume 43, Issue 7, Page 4821-4835, October 2026.
ABSTRACT This paper discusses lap time optimization, focusing on a single lap without considering opponents in autonomous racing. The paper presents a control and optimization architecture composed of a model‐based low level controller and a higher level iterative learning algorithm with the goal of obtaining the fastest qualifying lap in autonomous ...
Mustafa Alp, Matteo Corno, Giulio Panzani, Sergio Matteo Savaresi   +3 more
wiley   +1 more source

A Random Forest–Based Global Gridded Model for Vertical Correction of Precipitable Water Vapor Accounting for Nonlinear Vertical Variation

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Vertical correction of precipitable water vapor (PWV) is a critical step in PWV fusion and atmospheric research. To address the limited accuracy of traditional global‐scale PWV vertical correction models that do not explicitly account for nonlinear vertical variations, we developed RF‐PWV, a global 1° × 1° PWV vertical correction model based ...
Junyu Li, Mingxun Zhang, Liying Cao, Lilong Liu, Bao Zhang, Yibin Yao, Liangke Huang   +6 more
wiley   +1 more source

Along‐Strike Coupling Heterogeneity in Cascadia's Slow‐Slip Zone Constrained by GNSS and Reduced‐Order Rate‐And‐State Friction Modeling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Slow slip events (SSEs) in the Cascadia subduction zone exhibit along‐strike segmentation, where the central segment has longer recurrence intervals but smaller moments. We quantify the controls on this variability by combining geodetic inter‐SSE coupling inversion with Bayesian inference of a quasi‐dynamic rate‐and‐state friction SSE‐cycle ...
Yohai Magen, Alice‐Agnes Gabriel, Dave A. May   +2 more
wiley   +1 more source

Wave Signals From Rapidly Intensifying Typhoons Mark Vortex Adjustment Rather Than Robust Ionospheric Coupling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Rapidly intensifying typhoons can generate atmospheric waves, but nearby neutral‐atmosphere and ionospheric anomalies need not form a robust cross‐layer coupling chain. We examine 75 western North Pacific rapid‐intensification events during 2018–2023.
Zi‐Liang Li, Xiao‐Ran Wu
wiley   +1 more source

Aseismic Slip Along the Evaporite‐Rich Strike‐Slip Katouna‐Stamna Fault in Greece

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Aseismic slip has been observed on many active faults globally, but its controlling mechanisms remain unclear. This study focuses on the NW‐striking, left‐lateral Katouna‐Stamna Fault in Western Greece. We use InSAR surface deformation measurements to confirm the presence of aseismic slip and compare this behavior with structural evidence from
Joel Szrek, Silvia Crosetto, Sabrina Metzger, Giorgio Gomba, Claudio Faccenna, Romain Jolivet   +5 more
wiley   +1 more source

Extraction of Time-Varying Signals in GNSS and Geophysical Interpretation: Methods, Advances, and Challenges. [PDF]

Sensors (Basel)
Li X, Wu S, Li H, Liu B, Bian S, He Y.
europepmc   +1 more source

Impacts of Mid‐Latitude Ionospheric Dynamics on RF Applications During the November 2025 Superstorm Event

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study demonstrates the intriguing and complex interplay among auroral precipitation, enhanced TEC, density irregularities, and amplitude scintillations observed during the November 2025 superstorm. For the first time, we present observations of strong amplitude scintillation across continental United States (CONUS)—nearly from coast to ...
E. Yizengaw, W. Younas, Y. Nishimura, C. Gabrielse, T. Beach, A. J. Coster, R. Pradipta, K. M. Groves   +7 more
wiley   +1 more source

Residual-Guided Hybrid Stochastic Modeling: A Two-Stage Learning Framework for Urban GNSS Positioning Enhancement. [PDF]

Sensors (Basel)
Yin J, Li W, Fan R, Yuan Y, Zhao Z, Xu D, Yang Z, Shen F.   +7 more
europepmc   +1 more source