Results 61 to 70 of about 126,641 (269)
Interferometric Passive Radar Imaging with Deep Denoising Priors [PDF]
arXiv, 2022 Passive radar has key advantages over its active counterpart in terms of cost and stealth. In this paper, we address passive radar imaging problem by interferometric inversion using a spectral estimation method with a priori information within a deep learning (DL) framework.
arxiv
Soil moisture estimation from Sentinel-1 interferometric observations over arid regions [PDF]
, 2022 We present a methodology based on interferometric synthetic aperture radar (InSAR) time series analysis that can provide surface (top 5 cm) soil moisture (SSM) estimations. The InSAR time series analysis consists of five processing steps. A co-registered Single Look Complex (SLC) SAR stack as well as meteorological information are required as input of ...
arxiv +1 more source
A Geometric View of Closure Phases in Interferometry [PDF]
Publications of the Astronomical Society of Australia, 39, e014
(2022), 2020 Closure phase is the phase of a closed-loop product of correlations in a $\ge 3$-element interferometer array. Its invariance to element-based phase corruption makes it invaluable for interferometric applications that otherwise require high-accuracy phase calibration.
arxiv +1 more source
Remote Sensing, 2022 In the last two decades, the rapid growth in continuous Global Navigation Satellite Systems (GNSS) networks and improvements in Interferometric Synthetic Aperture Radar (InSAR) imaging allowed the acquisition of continuous and spatially extensive ...
Mimmo Palano
doaj +1 more source
Mapping ice-shelf flow with interferometric synthetic aperture radar stacking [PDF]
Journal of Glaciology, 2012 AbstractInterferometric synthetic aperture radar (InSAR) observations of ice-shelf flow contain ocean-tide and atmospheric-pressure signals. A model-based correction can be applied, but this method is limited by its dependency upon model accuracy, which in remote regions can be uncertain. Here we describe a method to determine two-dimensional ice-shelf
Mcmillan, Malcolm +6 more
openaire +4 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 We elucidate the generation mechanisms of singular points (SPs) by investigating the relationship between the phase distortion and the polarization-state changes in polarimetric interferometric synthetic aperture radar (PolInSAR). We find that there is a
Yuta Otsuka +3 more
doaj +1 more source
Molybdenum isotopes unmask slab dehydration and melting beneath the Mariana arc
Nature Communications, 2021 A deep neural network is developed to automatically extract ground deformation from Interferometric Synthetic Aperture Radar time series. Applied to data over the North Anatolian Fault, the method can detect 2 mm deformation transients and reveals a slow
Hong-Yan Li +7 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, 2019 Characterizing the spatiotemporal evolution of creep is essential to constrain fault slip budget and understand creep mechanism. Studies based on interferometric synthetic aperture radar and Global Positioning System (GPS) satellite observations until ...
Gokhan Aslan +7 more
semanticscholar +1 more source
Fundamental Radar Properties: Hidden Variables in Spacetime [PDF]
, 2001 A derivation of the properties of pulsed radiative imaging systems is presented with examples drawn from conventional, synthetic aperture, and interferometric radar. A geometric construction of the space and time components of a radar observation yields a simple underlying structural equivalence between many of the properties of radar, including ...
arxiv +1 more source
, 2017 Synthetic Aperture RADAR Interferometry (InSAR) provides a unique tool for the quantitative measurement of the Earth’s surface deformations induced by a variety of natural (such as volcanic eruptions, landslides and earthquakes) and anthropogenic (e.g ...
A. Pepe, F. Calò
semanticscholar +1 more source