Results 11 to 20 of about 639,415 (233)

Deep learning assisted exponential waveform decomposition for bathymetric LiDAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The processing of bathymetric LiDAR waveforms is an important task, as it provides range and radiometric information to determine the precise location of water surface and bottom, and other characteristics like amplitude.
N. Li   +4 more
doaj   +3 more sources

A Satellite Full-Waveform Laser Decomposition Method for Forested Areas Based on Hidden Peak Detection and Adaptive Genetic Optimization

open access: yesRemote Sensing
Laser waveform data that contain rich three-dimensional structural object information hold significant value in forest resource monitoring. However, traditional waveform decomposition algorithms are often constrained by complex waveform structures and ...
Fangxv Zhang   +7 more
doaj   +2 more sources

Gaussian decomposition method for full waveform data of LiDAR base on neural network

open access: yesScientific Reports
The full waveform data from airborne LiDAR (Light Detection and Ranging) provides information on the distance of the target. Accurately extracting the ranging information from the full waveform data is crucial for generating point clouds.
Jie Liu   +4 more
doaj   +2 more sources

Multilevel PWM Waveform Decomposition and Phase-Shifted Carrier Technique

open access: yesIranian Journal of Electrical and Electronic Engineering, 2008
Multilevel PWM waveforms can be decomposed into several multilevel PWM components. Phase-shifted carrier (PSC) is an efficient decomposition technique.
R. Naderi, A. Rahmati
doaj   +1 more source

SURFACE FITTING FILTERING OF LIDAR POINT CLOUD WITH WAVEFORM INFORMATION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Full-waveform LiDAR is an active technology of photogrammetry and remote sensing. It provides more detailed information about objects along the path of a laser pulse than discrete-return topographic LiDAR.
S. Xing   +5 more
doaj   +1 more source

Costas DFC-Based Random Stepped Wideband Waveform for Interference Countermeasure in SAR Imagery

open access: yesSensors, 2022
Interference in SAR imagery will induce false targets or form a mask in specific areas to prevent accurate scene assessment. Traditional anti-jamming methods based on waveform agility require a trade-off between anti-jamming performance and imaging ...
GanE Dai, Lei Zhang, Sha Huan
doaj   +1 more source

Defect Identification in Thermographic Nondestructive Testing under Cyclic Heating Using SVD Thermo-Component Analysis

open access: yesEngineering Proceedings, 2023
This study applied SVD (singular value decomposition) thermo-component analysis to defect detection using active infrared thermography. SVD decomposes time-series thermal image data into a temperature time-series waveform (PC) and a relative-value ...
Shoma Oiso   +3 more
doaj   +1 more source

Fetal electrocardiogram: ST waveform analysis in intrapartum surveillance [PDF]

open access: yes, 2007
ST waveform analysis of fetal electrocardiogram (ECG) for intrapartum surveillance (STAN) is a newly introduced method for fetal surveillance. The purpose of this commentary is to assist in the proper use of fetal ECG in combination with cardiotocography
I Amer‐Wahlin   +18 more
core   +1 more source

A Novel Waveform Decomposition and Spectral Extraction Method for 101-Channel Hyperspectral LiDAR

open access: yesRemote Sensing, 2022
The 101-channel full-waveform hyperspectral LiDAR (FWHSL) is able to simultaneously obtain geometric and spectral information of the target, and it is widely applied in 3D point cloud terrain generation and classification, vegetation detection, automatic
Yuhao Xia   +6 more
doaj   +1 more source

Benefits of Waveform Relaxation Method and Output Space Mapping for the Optimization of Multirate Systems [PDF]

open access: yes, 2014
We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system.
CLENET, Stephane   +3 more
core   +1 more source

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