Results 261 to 270 of about 25,781 (306)

Sentinel-1A and Sentinel-1B CSAR status

SPIE Proceedings, 2011
The ESA Sentinels constitute the first series of operational satellites responding to the Earth Observation needs of the EU-ESA Global Monitoring for Environment and Security programme. The GMES space component relies on existing and planned space assets as well as on new complementary developments by ESA.
Paul Snoeij, Mike Brown, Malcolm Davidson, Bjorn Rommen, Nicolas Floury, Dirk Geudtner, Ramon Torres   +6 more
openaire   +1 more source

Analysis of Sentinel-1A FDBAQ after commissioning phase

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
This paper concerns the performance of the Flexible Dynamic Block Adaptive Quantizer (FDBAQ), the on-board data compression scheme used by Sentinel-1A (S-1), the C-band Synthetic Aperture Radar (SAR) system for Earth Observation launched on 3rd April 2014.
Pietro Guccione, Michele Belotti, Davide Giudici, Andrea Monti Guarnieri, Roberta Bertoni, David Bibby, Ignacio Navas-Traver   +6 more
openaire   +3 more sources

Alphasat and sentinel 1A, the first 100 links

2015 IEEE International Conference on Space Optical Systems and Applications (ICSOS), 2015
The paper details the approach, sequence, and results of the in-orbit campaign for E/O data relay using the Tesat Laser Communication Terminals from a LEO spacecraft - Sentinel 1Aa part of the EU Copernicus program, to the TDP1 payload of Alphasat, Europe’s largest telecommunication satellite.
Frank Heine, Patricia Martin-Pimentel, Hartmut Kaempfner, Gerd Muehlnikel, Daniel Troendle, Herwig Zech, Christoph Rochow, Daniel Dallmann, Martin Reinhardt, Mark Gregory, Michael Lutzer, Sabine Philipp-May, Rolf Meyer, Edoardo Benzi, Philippe Sivac, Mike Krassenburg, Ian Shurmer, Uwe Sterr   +17 more
openaire   +1 more source

Sentinel-1A/B SAR and InSAR performance

2018
This paper addresses the Copernicus Sentinel-1A/B mission’s SAR and InSAR performance. Sentinel-1 uses preprogrammed SAR mode operations to provide a high revisit frequency and systematic global SAR image coverage. This is mainly based upon the operational use of the novel TOPS (Terrain Observation with Progressive Scans in azimuth) SAR imaging mode.
Geudtner, Dirk, Miranda, Nuno, Navas-Traver, Ignacio, Vega Ceba, Francisco, Prats, Pau, Yague-Martinez, Nestor, Breit, Helko, de Zan, Francesco, Larsen, Yngvar, Recchia, Andrea, Small, David, Schubert, Adrian, Barat, Itziar   +12 more
openaire   +1 more source

The Sentinel-1A instrument and operational product performance status

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
This paper addresses the results of the instrument and product performance verification, radiometric and geometric calibration achieved during the since commissioning and routine phase.
Nuno Miranda, Peter Meadows, Guillaume Hajduch, Alan Pilgrim, Riccardo Piantanida, Davide Giudici, David Small, Adrian Schubert, Romain Husson, Pauline Vincent, Alexis Mouche, Harald Johnsen, Giovanna Palumbo   +12 more
openaire   +1 more source

SEntinel-1A TOPS Interferometry application over the Dead Sea

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
Comparing with its former C-band fellows ERS and Envisat, Sentinel data is favored for its short revisit days (12 days) and free distribution policy. Moreover, TOPS mode can cover a much larger monitoring area (250 km in azimuth) while maintaining a relative high range/ azimuth resolution (4m*20m in general).
Yuxiao Qin, Daniele Perissin
openaire   +1 more source

Image Classification Based on Sentinel-1A and Landsat 8 OLI

2021
In this study, the Sentinel-1A and Landsat 8 OLI images were taken as the basic data in Qarhan Salt Lake area. Combined with the field survey samples, the maximum likelihood classification method and support vector machine method were used to classify the two kinds of images, and the accuracy of the classification results was evaluated.
Tingxi Song, Liming Gao, Lele Zhang, Yankun Li, Guangrui Zhu   +4 more
openaire   +1 more source

Monitoring and Analysis of Surface Subsidence Based on Sentinel-1A

Proceedings of the 2020 International Conference on Aviation Safety and Information Technology, 2020
The special collapsible soil in the Loess Plateau region leads to a higher risk of settlement for the airport. Due to the limit of coverage, the method of obtaining data by manual measurement is gradually replaced by remote sensing monitoring. So, European Sentry 1A satellite is used to obtain the airport data, and the airport settlement is analyzed by
Chen Zhe, Wei Boping, Zhou Xia, Peng Zhixing, He Tao, Liu Chang, Chen Zhaoxin, Pan Ye   +7 more
openaire   +1 more source

Sentinel-1A SAR data for global urban mapping: Preliminary results

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
In this paper, Sentinel-1A SAR data were evaluated for urban extent extraction using the KTH-Pavia Urban Extractor. The methodology is based on texture measures and spatial statistics as well as decision level fusion. Sentinel-1A data in Stripmap mode (SM) or Interferometric Wide Swath mode (IW) were acquired in five cities around the world.
Alexander Jacob, Yifang Ban
openaire   +1 more source

Urban Boundary Mapping Using Sentinel-1A SAR Data

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Mapping urban boundaries is an area of considerable research interest. The ability to monitor growth and change is facilitated by the ease and accuracy of boundary delineation. This research proposes an open-source (data and software) workflow for detecting and delineating the urban-rural boundary.
openaire   +1 more source