Results 71 to 80 of about 255,039 (224)
Coordinated motion of UGVs and a UAV [PDF]
, 2013 Coordination of autonomous mobile robots has received significant attention during the last two decades. Coordinated motion of heterogenous robot groups are more appealing due to the fact that unique advantages of different robots might be combined to ...
Soner Ulun +3 more
core +1 more source
AgronomyThis study evaluates the performance of LiDAR sensing and UAV photogrammetry for three-dimensional canopy reconstruction and structural parameter estimation in precision agriculture under Mediterranean conditions.
Santo Orlando +5 more
doaj +1 more source
UAV-Based LiDAR System for Urban Mapping and Modelling Applications [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThis paper presents urban mapping and modelling utilizing a low-cost Unmanned Aerial Vehicle (UAV) mounted Light Detection and Ranging (LiDAR) systems. Urban environments pose unique challenges for traditional mapping techniques due to their complex and ...
M. El-Diasty, A. Al-Hashim, R. Abdalla
doaj +1 more source
Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel +2 more
wiley +1 more source
Targeted observations with an airborne wind lidar [PDF]
, 2005 This study investigates the possibilities and limitations of airborne Doppler lidar for adaptive observations over the Atlantic Ocean. For the first time, a scanning 2-µm Doppler lidar was applied for targeted measurements during the Atlantic The ...
Busen, Reinhold +4 more
core
High Voltage, EarlyView.ABSTRACT Heavy construction machinery is essential for power infrastructure construction and maintenance, making safety distance measurement crucial for ensuring operational safety. Existing methods, which rely on target space mapping, face challenges such as error accumulation and limited accuracy.
Fuqi Ma +4 more
wiley +1 more source
Remote SensingQuantifying the vegetation aboveground biomass (AGB) is crucial for evaluating environment quality and estimating blue carbon in coastal wetlands.
Chentian Ge +5 more
doaj +1 more source
Methods in Ecology and Evolution, EarlyView.Abstract Tree crowns are complex, three‐dimensional structures whose morphology varies among species, individuals and environments. Although light detection and ranging (LiDAR) provides high‐resolution, single‐tree point clouds that advance species discrimination and the assessment of intraspecific variation in situ, crown shape is still commonly ...
Ladislav Hodač +5 more
wiley +1 more source
Airborne lidar observations supporting the ADM-Aeolus mission for global wind profiling [PDF]
, 2012 The Atmospheric Dynamics Mission ADM-Aeolus of ESA will be the first lidar mission to sense the global wind field from space. The instrument is based on a direct-detection Doppler lidar operating at 354.9 nm with two spectrometers for aerosol/cloud ...
Witschas, Benjamin +5 more
core
Lidar technology for the German offshore test site "alpha ventus"-Joint project in measurement development [PDF]
, 2008 This paper describes the content of the joint research project "Development of LiDAR measurement techniques for the German offshore test site" and its first results.
Mellinghoff, H. +15 more
core +1 more source