Results 1 to 10 of about 7,911 (115)

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

Sensors, 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, Feng Wang, Hongjian You, Xiaolan Qiu, Mudan Yang   +4 more
doaj   +2 more sources

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

Remote 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, Li Zhang, Yuxuan Liu, Qingdong Wang, Sisi Zlatanova   +4 more
doaj   +3 more sources

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

Journal 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

Efficient Super-Resolution Method for Targets Observed by Satellite SAR [PDF]

Sensors, 2023
Seung-Jae Lee, Sun-Gu Lee
exaly   +2 more sources

Geometric Positioning Accuracy Improvement Method of Micro SAR Satellites With Large Positioning Errors

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The rapid development of micro synthetic aperture radar (SAR) satellites provides a new means of all-day, all-weather, and high-frequency Earth observation.
Qian Cheng, Taoyang Wang, Xin Li, Yongcheng Wan, Maoqiang Jing   +4 more
doaj   +3 more sources

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

Journal 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, Chul-Ki Kim, Seong-Ook Park   +2 more
doaj   +1 more source

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

Geo 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

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

ICT 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, Junghwa Kang, Jae-Hyun Kim   +2 more
doaj   +1 more source

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

Remote 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, Fengli Zhang, Xiaochen Liu, Qi Wang, Qiqi Huang, Zhiwei Huang   +5 more
doaj   +1 more source

Development of China’s spaceborne SAR satellite, processing strategy, and application: take Gaofen-3 series as an example

Geo-spatial Information Science, 2022
After mastering the key technologies of manufacturing spaceborne Synthetic Aperture Radar (SAR), China’s SAR satellites have been successfully launched into space.
Guo Zhang, Shunyao Wang, Zhenwei Chen, Yuzhi Zheng, Ruishan Zhao, Taoyang Wang, Yu Zhu, Xinzhe Yuan, Wei Wu, Weitao Chen   +9 more
doaj   +1 more source