Results 1 to 10 of about 7,440 (164)

Geo-Positioning Accuracy Improvement of Multi-Mode GF-3 Satellite SAR Imagery Based on Error Sources Analysis [PDF]

open access: yesSensors, 2018
The GaoFen-3 (GF-3) satellite is the only synthetic aperture radar (SAR) satellite in the High-Resolution Earth Observation System Project, which is the first C-band full-polarization SAR satellite in China.
Niangang Jiao   +4 more
doaj   +2 more sources

Exploiting High Geopositioning Accuracy of SAR Data to Obtain Accurate Geometric Orientation of Optical Satellite Images

open access: yesRemote Sensing, 2021
Accurate geopositioning of optical satellite imagery is a fundamental step for many photogrammetric applications. Considering the imaging principle and data processing manner, SAR satellites can achieve high geopositioning accuracy.
Zhongli Fan   +4 more
doaj   +3 more sources

A Development of Reflector for CAL/VAL of SAR Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
The payload can be classified as a passive and active type. Generally radar satellite to acquire specific information through various radar images will use the SAR (Synthetic Aperture Radar) as active type payload.
Jung-Hoon Keum, Sung-Woong Ra
doaj   +3 more sources

Ultra-High Resolution Imaging Method for Distributed Small Satellite Spotlight MIMO-SAR Based on Sub-Aperture Image Fusion

open access: yesSensors, 2021
Small satellite synthetic aperture radar (SAR) has become a new development direction of spaceborne SAR due to its advantages of flexible launch, short development cycle, and low cost.
Fang Zhou   +4 more
doaj   +3 more sources

Accuracy Analysis of Radiometric Calibration In-Orbit for SuperView Neo-2 SAR Satellite

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The radiometric calibration technique of spaceborne synthetic aperture radar (SAR) aims to establish a constant relationship between the SAR target pulse response energy and the actual radar cross-section (RCS) of the ground.
Huijuan Li   +5 more
doaj   +3 more sources

Ocean Image Formation Algorithm Using Altimeter Data for Next Generation Satellite SAR [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
Synthetic aperture radar (SAR) obtains two-dimensional images of the Earth’s surface. Spatial resolution is one of the most important factors in evaluating SAR performance. Therefore, high operating frequencies are preferred for obtaining high resolution
Young-Geun Kang   +2 more
doaj   +1 more source

Dataset for Water Body Detection Using Satellite SAR Images [PDF]

open access: yesGeo Data, 2021
Satellite synthetic aperture radar (SAR) generates valid image information in all-weather. Thus, it can be effectively used for near real-time monitoring and damage analysis of flood areas which always involve overcast skies.
SeungJae Lee, Han Oh
doaj   +1 more source

An Interferometric SAR Satellite Mission [PDF]

open access: yes54th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law, 2003
The paper provides a critical review of the achievements in SAR interferometry from the ERS mission as well as from the Shuttle Radar Topography Mission SRTM. It describes the development from the original idea of the Interferometric Cartwheel to the concept of a formation flight of identical and active SAR satellites.
Runge, Hartmut   +3 more
openaire   +3 more sources

Phase calibration for ideal wideband chirp in satellite-based synthetic aperture radar

open access: yesICT Express, 2022
With the development of launch vehicles, the number of satellite-based synthetic aperture radar (SAR) has been increasing. Satellite-based SAR can acquire high-resolution images at day and night regardless of the weather.
Kyeongrok Kim   +2 more
doaj   +1 more source

Preliminary Evaluation of Geometric Positioning Accuracy of C-SAR Images Based on Automatic Corner Reflectors

open access: yesRemote Sensing, 2023
C-SAR/01 and C-SAR/02 serve as successors to the GF-3 satellite. They are designed to operate in tandem with GF-3, collectively forming a C-band synthetic aperture radar (SAR) satellite constellation.
Yanan Jiao   +5 more
doaj   +1 more source

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