Results 221 to 230 of about 21,382,108 (263)

Improvements in the Licsar Generator of Sentinel-1 Interferograms

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
This article contains brief overview on current key improvements in the interferograms generator part of LiCSAR, a system to generate open access moderate resolution Sentinel-1 interferograms aiming towards monitoring tectonic and volcanic deformation.
Milan Lazecký, Yasser Maghsoudi, Fabien Albino, Andrew J. Hooper, Tim J. Wright   +4 more
openaire   +1 more source

FDBAQ a novel encoding scheme for Sentinel-1

2009 IEEE International Geoscience and Remote Sensing Symposium, 2009
Modern operational and/or high resolution SAR satellite missions impose stringent requirements on on-board data compression such as a higher data reduction ratio, more flexibility, and faster data throughput. A novel approach is Flexible Dynamic Block Adaptive Quantization (FDBAQ). This method outperforms currently used Block Adaptive Quantization with
Paul Snoeij, Evert Attema, Andrea Monti-Guarnieri, Fabio Rocca   +3 more
openaire   +2 more sources

Prospects of Sentinel-1 for land applications

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The Sentinel-1 mission is a polar-orbiting satellite constellation for the continuation of C-band Synthetic Aperture Radar (SAR) applications. Contrary to its predecessor instruments onboard of ENVISAT and RADARSAT, the Sentinel-1 satellites will be operated following a predefined and fixed baseline acquisition scenario.
Wolfgang Wagner 0001, Daniel Sabel, Marcela Doubková, Michael Hornacek, Stefan Schlaffer, Annett Bartsch   +5 more
openaire   +1 more source

Assessment of sentinel-1 radiometric stability and quality

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The main goal of this paper is to assess the radiometric stability of the new Sentinel-1A (S-1A) SAR (Synthetic Aperture Radar) sensors. The S-1A radiometric stability was assessed by analyzing the temporal variations of the backscattering coefficient (σ°) returned from invariant targets. The results show three stable sub-time series of S-1A data.
El Hajj, M., Baghdadi, Nicolas, Zribi, Mehrez, Angelliaume, S.   +3 more
openaire   +2 more sources

Sentinel-1 system overview and performance

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The paper provides an overview of the GMES Sentinel-1 system characteristics including the SAR imaging modes and their key performance parameters, the SAR interferometry capabilities, and the specifics of related attitude and orbit control modes (i.e., roll steering mode and zero-Doppler steering mode).
Dirk Geudtner, Ramon Torres
openaire   +1 more source

Surface Water Detection from Sentinel-1

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Synthetic Aperture Radar (SAR) data from Sentinel-1 mission is a valuable all-weather observation for various monitoring applications on the land surface. In particular, SAR observations have unique signatures over surface water which makes them appropriate to develop a global surface water monitoring system. Existing global surface water products rely
Brookie Guzder-Williams, Hamed Alemohammad   +1 more
openaire   +1 more source

GMES Sentinel-1 mission

Remote Sensing of Environment, 2012
Abstract In the frame of the Global Monitoring for Environment and Security (GMES) Space Component programme, the European Space Agency (ESA) undertook the development of a European Radar Observatory (Sentinel-1), a polar orbiting two-satellite constellation for the continuation and improvement of SAR operational services and applications.
Ramon Torres, Paul Snoeij, Dirk Geudtner, David Bibby, Malcolm Davidson, Evert Attema, Pierre Potin, BjÖrn Rommen, Nicolas Floury, Mike Brown, Ignacio Navas Traver, Patrick Deghaye, Berthyl Duesmann, Betlem Rosich, Nuno Miranda, Claudio Bruno, Michelangelo L'Abbate, Renato Croci, Andrea Pietropaolo, Markus Huchler, Friedhelm Rostan   +20 more
openaire   +1 more source

Perspectives of Sentinel - 1 for InSAR applications

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The forthcoming Sentinel-1 will offer high quality, medium resolution interferograms, immediately ready for applications. The reduced revisit interval will lead to many improvements, simplifying the tasks of the researchers. New solutions for the estimate of the NS component of the motion can be considered.
openaire   +1 more source

Sentinel-1 mission scientific exploitation activities

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The Sentinel-1 Mission is the European Imaging Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). The objective of the current paper is to provide a brief overview of the latest ESA activities, in the frame of the Scientific Exploitation of Operational Missions (SEOM) programme ...
Yves-Louis Desnos, Michael Foumelis, Marcus E. Engdahl, Pierre-Philippe Mathieu, Francesco Palazzo, Fabrizio Ramoino   +5 more
openaire   +1 more source

ESA Copernicus Sentinel-1 Exploitation Activities

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The Copernicus Sentinel-1 mission is a constellation of two C-band synthetic aperture imaging radars developed as a joint initiative of the European Commission (EC) and the European Space Agency (ESA) within the Copernicus Programme. As one of the main objectives ESA carries out a programme of scientific exploitation of the Sentinel-1 mission through a
Magdalena Fitrzyk, Marcus E. Engdahl, Diego Fernández 0002   +2 more
openaire   +1 more source