Results 11 to 20 of about 30,864,347 (112)

In-Orbit Assessment of Image Quality Metrics for the LuTan-1 SAR Satellite Constellation

Remote Sensing
LuTan-1(LT-1) is the first Chinese civil L-band satellite constellation for geohazard observation, comprising LT-1A and LT-1B satellites. By employing interferometric altimetry and differential deformation measurement technologies, it achieves high ...
Mingxia Zhang, Liyuan Liu, Aichun Wang, Qijin Han, Minghui Hou, Yanru Li   +5 more
doaj   +2 more sources

Precise Ambiguity Performance Evaluation for Spaceborne SAR with Diverse Waveforms

Remote Sensing, 2023
The ambiguity suppression is a technical challenge for the present generation of spaceborne synthetic aperture radar (SAR) systems since this kind of suppression does not take the high spatial resolution and wide coverage into account simultaneously. The
Guodong Jin, Yu Wang, Hui Yang, Chen Song, Jingkai Huang, Wei Wang, Yunkai Deng, Daiyin Zhu   +7 more
doaj   +1 more source

LT-1A/B Satellite SAR Geometric Calibration and Absolute Location Error Analysis

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
LuTan-1 (LT-1) is China's first L-band differential interferometric synthetic aperture radar (SAR) satellite system, and also the first twin L-band SAR satellite system in the world.
Minzheng Mu, Zhiwei Li, Bing Xu, Xin He, Kun Han, Xun Du, Qijin Han, Aichun Wang   +7 more
doaj   +1 more source

Radiometric Performance Monitoring Method for LuTan-1 Satellites Combining Internal Calibration and Field Calibration

Remote Sensing
The Lutan-1 (LT-1) mission is the first civilian L-band differential interferometric synthetic aperture radar (SAR) system in China, with interferometry as its primary application.
Yulin Yao, Mingxia Zhang, Bopeng Yang, Hang Zhao, Qijin Han, Minghui Hou   +5 more
doaj   +1 more source

LT-1 SAR Satellite Constellation for Rock Glacier Topography Mapping and Deformation Monitoring Over the Tibetan Plateau Periglacial Environment

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The kinematics of rock glaciers is a key indicator for studying periglacial environment hydrology, climate, and disasters. The interferometric synthetic aperture radar (InSAR) technique has been demonstrated to be an effective technique for detecting the
Xuefei Zhang, Xinming Tang, Tao Li, Min Feng, Jing Wang, Xiang Zhang, Xiaoqing Zhou, Jing Lu   +7 more
doaj   +1 more source

Operational Deformation Monitoring of the Hong Kong–Zhuhai–Macao Bridge with Multi-Orbit LuTan-1 SAR Satellites [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study evaluates the operational capability of the Chinese LuTan-1 (LT-1) L-band SAR constellation for monitoring the Hong Kong–Zhuhai–Macao Bridge (HZMB), a representative sea-crossing bridge under a complex subtropical marine climate ...
J. Lu, X. Tang, T. Li, X. Zhang, X. Zhang, T. Li, X. Qiu, Y. Lu   +7 more
doaj   +1 more source

An Advanced Interferometric Baseline Estimation Method (IBEM) for Spaceborne Bistatic SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spaceborne bistatic synthetic aperture radar (BiSAR) employs single-pass cross-track interferometry (XTI) to invert digital elevation models (DEMs) of target areas.
Yanyan Zhang, Junfeng Li, Pingping Lu, Robert Wang   +3 more
doaj   +1 more source

LuTan-1 InSAR Products Assessments for Geohazards and Geoinformation Monitoring [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
LuTan-1 (LT-1) satellites have been launched for about 4 years. 771,282 images have been distributed to the users of China till 29th October, 2025. Main application purpose of LT-1 was geohazard monitoring and geoinformation production.
T. Li, X. Tang, X. Zhang, J. Lu, X. Tian, X. Zhang   +5 more
doaj   +1 more source

Derivation of 3-D Surface Displacements in Mining Areas Using Farneback Optical Flow Method With LuTan-1 Ascending and Descending SAR Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study tackles large-gradient 3-D surface deformation monitoring in mining areas, where InSAR suffers coherence loss and pixel offset tracking struggles with accuracy–efficiency balance.
Hai Huang, Xiang Zhang, Hongdong Fan, Tao Li, Jian Li, Qiqiang Zhang   +5 more
doaj   +1 more source

Cross-validation of the DEM obtained using LuTan-1 SAR satellites: A case study in Guyuan County, China [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The digital elevation model (DEM) based on synthetic aperture radar interferometry (SAR, InSAR) technology have become an important data source for large-scale topographic mapping, but their characteristics vary with satellite systems and methodologies ...
X. Tang, Y. Lu, T. Li, X. Zhou, J. Lu, X. Zhang, X. Zhang, X. Qiu, J. Chen   +8 more
doaj   +1 more source