Results 41 to 50 of about 20,366 (247)

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

, 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

Generalized-Capon Method for Diff-Tomo SAR Analyses of Decorrelating Scatterers

Remote Sensing, 2019
In synthetic aperture radar (SAR) remote sensing, Differential Tomography (Diff-Tomo) is developing as a powerful crossing of the mature Differential SAR Interferometry and the emerged 3D SAR Tomography.
Fabrizio Lombardini, Francesco Cai
doaj   +1 more source

MT-INSAR LANDSLIDE MONITORING WITH THE AID OF HOMOGENEOUS PIXELS FILTER [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
SAR interferograms are often contaminated by random noises related to temporal decorrelation, geometrical decorrelation and thermal noises, which makes the fringes obscured and greatly decreases the density of the coherent target and the accuracy of ...
X. J. Liu, C. Y. Zhao, C. Y. Zhao, C. Y. Zhao, B. H. Wang, W. F. Zhu   +5 more
doaj   +1 more source

Assessment of L-Band SAOCOM InSAR Coherence and Its Comparison with C-Band: A Case Study over Managed Forests in Argentina

Remote Sensing, 2022
The objective of this work is to analyze the behavior of short temporal baseline interferometric coherence in forested areas for L-band spaceborne SAR data.
Santiago Ariel Seppi, Carlos López-Martinez, Marisa Jacqueline Joseau   +2 more
doaj   +1 more source

Neurogenesis Drives Stimulus Decorrelation in a Model of the Olfactory Bulb [PDF]

, 2012
The reshaping and decorrelation of similar activity patterns by neuronal networks can enhance their discriminability, storage, and retrieval. How can such networks learn to decorrelate new complex patterns, as they arise in the olfactory system?
A Arevian, A Fantana, A Mouret, A Mouret, A Sahay, AM McNamara, B Johnson, B Winner, Boris S. Gutkin, C Linster, C Rochefort, CW Lin, D Chaudhury, D Rinberg, D Wilson, DA Wilson, DJ Heeger, E Yaksi, F David, F Kermen, F Lazarini, F Lazarini, GA Cecchi, GK Mak, GK Mak, GM Shepherd, Hermann Riecke, I Imayoshi, I Ortega-Perez, J Ninkovic, JT Davie, L Belnoue, L Petreanu, LM Kay, M Alonso, M Satou, M Valley, M Whitman, M Yamaguchi, MC Whitman, MD Döbrössy, MM Moreno, MT Wiechert, N Kaneko, N Mandairon, N Mandairon, N Mandairon, N Mandairon, N Mandairon, N Mandairon, N Miwa, O Escanilla, P Panzanelli, PA Brennan, PE Castillo, PM Lledo, Q Nai, R Pressler, RE Dolmetsch, RW Friedrich, RW Friedrich, S Sultan, S Sultan, S Sultan, S Wick, Siu-Fai Chow, SR Olsen, SS Magavi, Stuart D. Wick, SW Kuffler, SX Luo, T Shingo, TA Cleland, TA Cleland, TB Woolf, TK Yokoyama, V Breton-Provencher, V Egger, V Egger, W Kelsch, W Kim, Y Gao   +81 more
core   +6 more sources

Rapid interstellar scintillation of PKS B1257-326: two-station pattern time delays and constraints on scattering and microarcsecond source structure [PDF]

, 2006
We report measurements of time delays of up to 8 minutes in the centimeter wavelength variability patterns of the intra-hour scintillating quasar PKS 1257-326 as observed between the VLA and the ATCA on three separate epochs.
Anastasios K. Tzioumis, Coles W. A., David L. Jauncey, Hayley E. Bignall, James E. J. Lovell, Jean‐Pierre Macquart, Lucyna Kedziora‐Chudczer, Rickett B. J.   +7 more
core   +2 more sources

L-Band Temporal Coherence Assessment and Modeling Using Amplitude and Snow Depth over Interior Alaska

Remote Sensing, 2018
Interferometric synthetic aperture radar (InSAR) provides the capability to detect surface deformation. Numerous processing approaches have been developed to improve InSAR results and overcome its limitations.
Yusuf Eshqi Molan, Jin-Woo Kim, Zhong Lu, Piyush Agram   +3 more
doaj   +1 more source

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

Remote 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, Chao Wang, Hong Zhang, Yixian Tang, Xiuguo Liu   +4 more
doaj   +1 more source

Three- and Four-Dimensional Topographic Measurement and Validation

Remote 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, Deren Li, Stefano Tebaldini, Mingsheng Liao, Lu Zhang, Fabrizio Lombardini, Timo Balz, Norbert Haala, Xiaoli Ding, Ramon Hanssen   +9 more
doaj   +1 more source

Temporal Coherence Estimators for GBSAR

Remote 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, Lapo Miccinesi, Alberto Michelini, Massimiliano Pieraccini   +3 more
doaj   +1 more source