Results 11 to 20 of about 20,326 (218)
Remote Sensing, 2023 Polarimetric Synthetic Aperture Radar Interferometry (Pol-InSAR) based forest height estimation for ecosystem monitoring and management has been developing rapidly in recent years. Spaceborne Pol-InSAR systems with long temporal baselines of several days
Chang Liu +4 more
doaj +1 more source
Temporal decorrelations in compressible isotropic turbulence [PDF]
Physical Review E, 2013 Temporal decorrelations in compressible isotropic turbulence are studied using the space-time correlation theory and direct numerical simulation. A swept-wave model is developed for dilatational components while the classic random sweeping model is proposed for solenoidal components.
Li, Dong, Zhang, Xing, He, Guowei
openaire +3 more sources
Remote Sensing, 2021 Vegetation height estimation plays a pivotal role in forest mapping, which significantly promotes the study of environment and climate. This paper develops a general forest structure model for vegetation height estimation using polarimetric ...
Cheng Xing +5 more
doaj +1 more source
A ROBUST PCT METHOD BASED ON COMPLEX LEAST SQUARES ADJUSTMENT METHOD [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Polarization Coherence Tomography (PCT) method has the good performance in deriving the vegetation vertical structure. However, Errors caused by temporal decorrelation and vegetation height and ground phase always propagate to the data analysis and ...
F. Haiqiang +4 more
doaj +1 more source
Decorrelation scales for Arctic Ocean hydrography – Part I: Amerasian Basin [PDF]
Ocean Science, 2018 Any use of observational data for data assimilation requires adequate information of their representativeness in space and time. This is particularly important for sparse, non-synoptic data, which comprise the bulk of oceanic in situ observations in ...
H. Sumata +13 more
doaj +1 more source
On the Derivation of Volume Decorrelation From TanDEM-X Bistatic Coherence
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 The bistatic interferometric coherence is affected by different sources of error, among which volume decorrelation, which quantifies the amount of noise caused by volume scattering mechanisms.
Paola Rizzoli +5 more
doaj +1 more source
Remote Sensing, 2020 The paper addresses the temporal stability of distributed targets, particularly referring to vegetation, to evaluate the degradation affecting synthetic aperture radar (SAR) imaging and repeat-pass interferometry, and provide efficient SAR simulation ...
Andrea Monti-Guarnieri +4 more
doaj +1 more source
En-face OCT and OCT angiography analysis of macular choroidal macrovessel
American Journal of Ophthalmology Case Reports, 2021 Purpose: To analyze en-face optical coherence tomography (OCT) and decorrelation signals on OCT angiography (OCTA) in two cases of macular choroidal macrovessel (MCM). Observations: Case report.
Carlos A. Moreira-Neto +4 more
doaj +1 more source
Modeling space-time correlations of velocity fluctuations in wind farms [PDF]
, 2017 An analytical model for the streamwise velocity space-time correlations in turbulent flows is derived and applied to the special case of velocity fluctuations in large wind farms.
Lukassen, Laura J. +3 more
core +3 more sources
Synchronous chaos and broad band gamma rhythm in a minimal multi-layer model of primary visual cortex. [PDF]
PLoS Computational Biology, 2011 Visually induced neuronal activity in V1 displays a marked gamma-band component which is modulated by stimulus properties. It has been argued that synchronized oscillations contribute to these gamma-band activity.
Demian Battaglia, David Hansel
doaj +1 more source