Results 41 to 50 of about 20,326 (218)

Analysis of Permafrost Region Coherence Variation in the Qinghai–Tibet Plateau with a High-Resolution TerraSAR-X Image

open access: yesRemote Sensing, 2018
The Qinghai–Tibet Plateau (QTP) is heavily affected by climate change and has been undergoing serious permafrost degradation due to global warming. Synthetic aperture radar interferometry (InSAR) has been a significant tool for mapping surface features ...
Zhengjia Zhang   +4 more
doaj   +1 more source

Three- and Four-Dimensional Topographic Measurement and Validation

open access: yesRemote Sensing, 2021
This paper reports on the activities carried out in the context of “Dragon project 32278: Three- and Four-Dimensional Topographic Measurement and Validation”.
Fabio Rocca   +9 more
doaj   +1 more source

Controls on ERS altimeter measurements over ice sheets: Footprint-scale topography, backscatter fluctuations, and the dependence of microwave penetration depth on satellite orientation [PDF]

open access: yes, 2004
We consider the reliability of radar altimeter measurements of ice sheet elevation and snowpack properties in the presence of surface undulations. We demonstrate that over ice sheets the common practice of averaging echoes by aligning the first return ...
Arthern, RJ, Ridout, AL, Wingham, DJ
core   +1 more source

Adaptation and Temporal Decorrelation by Single Neurons in the Primary Visual Cortex

open access: yesJournal of Neurophysiology, 2003
Limiting redundancy in the real-world sensory inputs is of obvious benefit for efficient neural coding, but little is known about how this may be accomplished by biophysical neural mechanisms. One possible cellular mechanism is through adaptation to relatively constant inputs.
Wang, Xiao-Jing   +3 more
openaire   +3 more sources

Temporal Coherence Estimators for GBSAR

open access: yesRemote Sensing, 2022
Many Ground-Based Synthetic Aperture Radar (GBSAR) applications demand preliminary analysis to select areas with high-quality signal. That is, areas in which the phase can be processed to extract the desired information. The interferometric coherence and
Alessandra Beni   +3 more
doaj   +1 more source

Low-latency compression of mocap data using learned spatial decorrelation transform

open access: yes, 2016
Due to the growing needs of human motion capture (mocap) in movie, video games, sports, etc., it is highly desired to compress mocap data for efficient storage and transmission.
Chau, Lap-Pui   +3 more
core   +1 more source

Learning to Discriminate Through Long-Term Changes of Dynamical Synaptic Transmission [PDF]

open access: yes, 2008
Short-term synaptic plasticity is modulated by long-term synaptic changes. There is, however, no general agreement on the computational role of this interaction.
Gundlfinger, Anja   +4 more
core   +2 more sources

Four-Stage Inversion Algorithm for Forest Height Estimation Using Repeat Pass Polarimetric SAR Interferometry Data

open access: yesRemote Sensing, 2018
This paper proposes a new method for forest height estimation using single-baseline single frequency polarimetric synthetic aperture radar interferometry (PolInSAR) data.
Tayebe Managhebi   +2 more
doaj   +1 more source

Quantum correlated light pulses from sequential superradiance of a condensate [PDF]

open access: yes, 2009
We discover an inherent mechanism for entanglement swap associated with sequential superradiance from an atomic Bose-Einstein condensate. Based on careful examinations with both analytical and numerical approaches, we conclude that as a result of the ...
Mustecaplioglu, O. E.   +3 more
core   +2 more sources

Quantifying Temporal Decorrelation over Boreal Forest at L- and P-band [PDF]

open access: yes, 2008
Temporal decorrelation is probably the most critical factor towards a successful implementation of Pol-InSAR parameter inversion techniques in terms of repeat-pass InSAR scenarios. In this paper the effect and impact of temporal decorrelation at L- and P-
Hajnsek, Irena   +3 more
core  

Home - About - Disclaimer - Privacy