Results 31 to 40 of about 63,432 (250)

Consideration on Singular-Point Generating Mechanisms by Analyzing the Effect of Phase-and-Polarization Optimization in PolInSAR

open access: yesIEEE 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

Block Adjustment of Orientation Parameters and Interferometric Parameters Using Very High-Resolution SAR Data for DSM Mapping

open access: yesIEEE Access, 2023
Block adjustment technology can effectively correct the interferometric parameter errors acquired from Interferometric Synthetic Aperture Radar (InSAR) system.
Hao Zhang   +4 more
doaj   +1 more source

A Deep Learning Approach for SAR Tomographic Imaging of Forested Areas [PDF]

open access: yesIEEE Geoscience and Remote Sensing Letters, vol. 20, pp. 1-5, 2023, Art no. 4007405, 2023
Synthetic aperture radar tomographic imaging reconstructs the three-dimensional reflectivity of a scene from a set of coherent acquisitions performed in an interferometric configuration. In forest areas, a large number of elements backscatter the radar signal within each resolution cell.
arxiv   +1 more source

Ground deformation and fissure activity in Datong basin, China 2007–2010 revealed by multi-track InSAR

open access: yesGeomatics, Natural Hazards & Risk, 2019
The Datong basin is one of the complex geologic environments in China. Several faults are distributed in the basin, and a number of hidden faults have been discovered within the basin. Ground fissures (GFs) and land subsidence occur in this region.
Chengsheng Yang   +5 more
doaj   +1 more source

Three-dimensional Interferometric MIMO Radar Imaging for Target Scattering Diagnosis

open access: yesLeida xuebao, 2018
Two-dimensional (2D) Synthetic Aperture Radar (SAR) and Inverse SAR (ISAR) imaging is of importance for diagnostic studies of target scattering mechanisms. Rail SAR and turntable ISAR are currently widely applied techniques for high resolution diagnostic
Xu Xiaojian, Liu Yongze
doaj   +1 more source

Diffusion Models for Interferometric Satellite Aperture Radar [PDF]

open access: yesarXiv, 2023
Probabilistic Diffusion Models (PDMs) have recently emerged as a very promising class of generative models, achieving high performance in natural image generation. However, their performance relative to non-natural images, like radar-based satellite data, remains largely unknown. Generating large amounts of synthetic (and especially labelled) satellite
arxiv  

Interferometric synthetic aperture radar processing on a massively parallel supercomputer [PDF]

open access: yesProceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers, 2002
Interferometric synthetic aperture radar (IFSAR) processing technology has made available the ability to generate high accuracy digital terrain elevation (DTE) data. As with most SAR applications, the computation involved is very intensive. Massively parallel processors (MPP) provide the high performance required to do scalable SAR processing at a ...
Yerkes, C., Webster, E., d'Arnaud, P.
openaire   +3 more sources

Study on the simulation of simultaneous full AT-POLINSAR

open access: yesThe Journal of Engineering, 2019
With the maturity of the instantaneous full-polarisation measurement, the instantaneous full-polarimetric system is becoming an important development direction of the polarimetric synthetic aperture radar (POLSAR); however, as an important research ...
Peng Zhang   +5 more
doaj   +1 more source

Interferometric Passive Radar Imaging with Deep Denoising Priors [PDF]

open access: yesarXiv, 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]

open access: yes, 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

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