Results 261 to 270 of about 14,370,095 (307)

Effects of Ionosphere and Troposphere on L-Band SAR Geometric Accuracy

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
This study investigated the geometric errors in L-band synthetic aperture radar (SAR) caused by the effects of the ionosphere and troposphere based on observational evidence derived from the Phased Array type L-band SAR-2 (PALSAR-2) onboard the Advanced Land Observing Satellite-2 (ALOS-2) data, which were obtained by calibration and validation works ...
Haruya Hirano, Osamu Isoguchi, Takeshi Motohka, Takeo Tadono   +3 more
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Sensitivity analysis of L-band SAR to inundated area

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
A sensitivity of L-band SAR to an inundated area was examined for an application of rapid flood mapping. Based on a theoretical scattering model, an intensive comparison by using the various real spaceborne and airborne L-band SAR data obtained by ALOS-2 was conducted.
Motofumi Arii, Takeshi Nishimura
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Instrument pre-development activities for L-band SAR

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
In preparation of potential future Earth observation Synthetic Aperture Radar (SAR) missions, the European Space Agency (ESA) is conducting instrument preparatory activities. This paper presents the status and results of the instrument pre-developments for an L-band receive-only SAR, which would fly in formation with an active SAR satellite acting as ...
Nicolas Gebert, Dennis Schobert, Bernardo Carnicero Domínguez, Mike Gibbons, Elia Di Salvo, Fernando Monjas   +5 more
openaire   +2 more sources

Mapping the Ionosphere Using L-Band SAR Data

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
The influence of the ionosphere on spaceborne SAR signals can be significant, especially approaching wavelengths at L-band or larger. By measuring these effects and inverting the underlying physical model, these effects can be used to measure and map aspects of the ionosphere. ALOS PALSAR data is employed to demonstrate this capability. Single-pol data
Jeremy Nicoll, Franz Meyer
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Use of L-Band Multitemporal SAR Data for Landslide Monitoring

IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023
In the last two decades, satellite Multi-Temporal Differential Interferometric SAR (DInSAR) techniques have become consolidated tools for studying slow-moving landslides. Moreover, the availability of sensors using different band frequencies and the development of advanced processing algorithms have constantly improved.
Diego Reale, Pasquale Imperatore, Damian Loran, Antonio Pauciullo, Antonio Pepe, Eugenio Sansosti, Edinson Andrés Solarte Casanova, Simona Verde, Gianfranco Fornaro   +8 more
openaire   +4 more sources

L band circularly polarized SAR onboard microsatellite

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Center for Environmental Remote Sensing, Chiba University develops L Band circularly polarized synthetic aperture radar (SAR) sensor for microsatellite (150 kg class). This paper explains the project, specification, antenna deployment, RF system, and experiment of circularly polarized SAR in anechoic chamber. In the future, this sensor will be employed
Josaphat Tetuko Sri Sumantyo, Nobuyoshi Imura, Shunsuke Onishi, Tetsuo Yasaka, Robertus Heru Triharjanto, Koichi Ito 0003, Steven Gao, Kazuteru Namba, Katsumi Hattori, Fumio Yamazaki, Chiharu Hongo, Akira Kato, Daniele Perissin   +12 more
openaire   +2 more sources

Airborne differential sar interferometry: first results at l-band

IEEE Transactions on Geoscience and Remote Sensing, 2003
In recent years, differential interferometry using spaceborne synthetic aperture radar (SAR) sensors has become an established technique for detecting and monitoring centimetre-scale deformations of the Earth's surface, as well as glacier flows and landslides.
Andreas Reigber, Rolf Scheiber
openaire   +2 more sources

Biomass of dense forests related to L-band SAR backscatter? [PDF]

2014 IEEE Geoscience and Remote Sensing Symposium, 2014
Synthetic aperture radar (SAR) is one of the most promising remote sensor to map forest carbon. The unique spaceborne and long-wavelength SAR data currently available are L-band data, but their relationship with forest biomass is still under controversy, particularly for high biomass values.
Stephane Mermoz, Maxime Réjou-Méchain, Ludovic Villard, Thuy Le Toan, Vivien Rossi, Sylvie Gourlet-Fleury   +5 more
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Structural classification of forest by means of L-band tomographic SAR

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Synthetic Aperture Radar Tomography provides the 3D reflectivity of the observed scene. Hence, in a forest scenario, it reflects information relevant to forest structure. However, how and to which extent this information is reflected and which are possible ways to quantify it are still open questions.
Marivi Tello, Victor Cazcarra-Bes, Matteo Pardini, Kostas Papathanassiou   +3 more
openaire   +2 more sources

L-band SAR-processor for the Chinese SAR Satellite

Proceedings. ICCEA 2004. 2004 3rd International Conference on Computational Electromagnetics and Its Applications, 2004., 2005
The SAR processor was developed for fast delivery of high-resolution images from the Chinese CRS-1 satellite based on Pentium IV technology. Through testing, all the following requirements were met at an acceptable hardware and software cost: fast delivery time; high resolution; high precision.
openaire   +1 more source