Results 21 to 30 of about 55,280 (259)

A Comparison of Surface Slopes Extracted from ICESat Waveform Data and High Resolution DEM [PDF]

open access: yesEPJ Web of Conferences, 2020
Surface slope is an important topographic variable, accurate surface slope can support many research appliacations. Large footprint full waveform data has been used to estimate the surface slope and performes well.
Xie Huan   +3 more
doaj   +1 more source

FULL WAVEFORM LIDAR EXPLOITATION TECHNIQUE AND ITS EVALUATION IN THE MIXED FOREST HILLY REGION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this paper a full waveform exploitation technique and its evaluation in the mixed forest hilly region is presented. The increment in ground penetration by using the full waveform exploitation technique compared to the discrete LiDAR pulses during ...
S. Chhatkuli   +4 more
doaj   +1 more source

A Calibration Method for Large-Footprint Full-Waveform Airborne Laser Altimeter without a Calibration Field

open access: yesRemote Sensing, 2023
The geometrical measurement precision of laser spots is affected by the deviation between the parameters of the laser altimeter and the laboratory measurement results, and the inversion accuracy of surface object height is also limited.
Shaoning Li   +3 more
doaj   +1 more source

End-to-End Full-Waveform Echo Decomposition Based on Self-Attention Classification and U-Net Decomposition

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Different from conventional decomposition methods, which utilize several steps to obtain the final result, a self-attention-based neural network, Attention Full-waveform Decomposition Network (AFD-Net), is discussed in this article for end-to-end full ...
Gangping Liu, Jun Ke
doaj   +1 more source

ANALYSIS AND APPLICATION OF LIDAR WAVEFORM DATA USING A PROGRESSIVE WAVEFORM DECOMPOSITION METHOD [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Due to rich information of a full waveform of airborne LiDAR (light detection and ranging) data, the analysis of full waveform has been an active area in LiDAR application.
J. Zhu, Z. Zhang, X. Hu, Z. Li
doaj   +1 more source

PRELIMINARY QUALITY ANALYSIS OF GF-7 SATELLITE LASER ALTIMETER FULL WAVEFORM DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The full-waveform data is the core data of GaoFen-7 (GF-7) satellite laser altimeter, and evaluation of waveform data quality is an important step and premise for satellite laser altimetry and quality control.
G. Li   +12 more
doaj   +1 more source

Normalization of Echo Features Derived from Full-Waveform Airborne Laser Scanning Data

open access: yesRemote Sensing, 2015
Full-waveform airborne laser scanning systems provide fundamental observations for each echo, such as the echo width and amplitude. Geometric and physical information about illuminated surfaces are simultaneously provided by a single scanner.
Yu-Ching Lin
doaj   +1 more source

Automatic Filtering and Classification of Low-Density Airborne Laser Scanner Clouds in Shrubland Environments

open access: yesRemote Sensing, 2022
The monitoring of shrublands plays a fundamental role, from an ecological and climatic point of view, in biodiversity conservation, carbon stock estimates, and climate-change impact assessments.
Tiziana Simoniello   +5 more
doaj   +1 more source

SIMULATION OF FULL-WAVEFORM LASER ALTIMETER ECHOWAVEFORM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Change of globe surface height is an important factor to study human living environment. The Geoscience Laser Altimeter System (GLAS) on ICESat is the first laser-ranging instrument for continuous global observations of the Earth.
Y. Lv   +5 more
doaj   +1 more source

On the use of neural networks for full waveform inversion

open access: yesComputer Methods in Applied Mechanics and Engineering, 2023
Neural networks have recently gained attention in solving inverse problems. One prominent methodology are Physics-Informed Neural Networks (PINNs) which can solve both forward and inverse problems. In the paper at hand, full waveform inversion is the considered inverse problem. The performance of PINNs is compared against classical adjoint optimization,
Leon Herrmann   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy