Results 1 to 10 of about 107,517,024 (132)

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

Utilizing LuTan-1 SAR Images to Monitor the Mining-Induced Subsidence and Comparative Analysis with Sentinel-1

Remote Sensing
The LuTan-1 (LT-1) satellite, launched in 2022, is China’s first L-band full-polarimetric Synthetic Aperture Radar (SAR) constellation, boasting interferometry capabilities. However, given its limited use in subsidence monitoring to date, a comprehensive
Fengqi Yang, Xianlin Shi, Keren Dai, Wenlong Zhang, Shuai Yang, Jing Han, Ningling Wen, Jin Deng, Tao Li, Yuan Yao, Rui Zhang   +10 more
doaj   +2 more sources

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   +2 more sources

Monitoring and Analysis of Surface Deformation in Mining Area Based on LuTan-1 and Sentinel-1A Data

Remote Sensing
High-intensity mining activities in coal mining areas have produced large-gradient surface deformation, posing severe challenges to deformation monitoring using Interferometric Synthetic Aperture Radar (InSAR) techniques based on C-band Synthetic ...
Zisu Cheng, Meinan Zheng, Qingbiao Guo, Yingchun Wang, Jinchao Li, Xiang Zhang   +5 more
doaj   +2 more sources

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   +2 more sources

A Novel Geometric Calibration Method of Spaceborne SAR for Rugged Terrain: A Case Study of LuTan-1 Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The geometric positioning accuracy of synthetic aperture radar (SAR) images is affected by the radar system measurement and processing parameters, platform ephemeris data and auxiliary DEM data. Geometric calibration can compensate for the SAR systematic
Ke Shi, Qingsong Wang, Zhiming Liu, Wenlong Hu, Haisong Weng, Yuanhui Mo, Tao Lai, Haifeng Huang   +7 more
doaj   +1 more source

LuTan-1 Satellite-Based Geological Disaster Detection in Lingbao City, Western Henan of China [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
China’s monsoon climate makes it prone to geological disasters like landslides, especially from April to October. Henan Province, with 44.3% mountainous and hilly areas, is highly vulnerable, particularly in the western, northern, and southern ...
J. Lu, X. Tang, L. Wei, L. Guo, T. Li, X. Zhang, X. Zhang   +6 more
doaj   +1 more source

LuTan-1 InSAR-Constrained Reconstruction of Concealed Coal-Mining Working-Face Geometry

Remote Sensing
To address the difficulty in determining underground working face geometry when mining records are incomplete or mining activities are concealed, this study proposes an InSAR-constrained method for inverting the geometric parameters of concealed working ...
Shenshen Chi, Bingqian Yang, Lei Wang, Jiajia Yuan, Qingbiao Guo, Xuexiang Yu   +5 more
doaj   +1 more source

LuTan-1: First Demonstration of Hybrid-Polarimetric Synthetic Aperture Radar—Assessing Application Potentials and Performance Constraints

Journal of Remote Sensing
The hybrid-polarimetric (HP) mode is an emerging synthetic aperture radar polarimetric mode that offers a wider swath and improved range ambiguity performance compared to the quadrature-polarimetric (QP) mode, with a slight loss of polarimetric ...
Lizhi Liu, Pingping Lu, Cheng Xing, Yanyan Zhang, Yonghua Cai, Fei Zhao, Bo Li, Liang Li, Aichun Wang, Ning Li, Robert Wang, Yirong Wu   +11 more
doaj   +1 more source

Adaptive volume coherence optimization for forest height inversion in mountainous areas using innovative spaceborne L-band bistatic InSAR

GIScience & Remote Sensing
Spaceborne L-band bistatic interferometric synthetic aperture radar (InSAR) is an advanced remote sensing technology used for forest height inversion. It enables the detection of forest vertical structures and avoids the effects of temporal decorrelation.
Jie Wan, Changcheng Wang, Yang Lei, Erxue Chen, Anmin Fu, Yu Liu, Lei Zhao, Xiaotong Liu, Jie Xu, Yaxiong Fan, Qing Song   +10 more
doaj   +1 more source