Results 21 to 30 of about 30,864,347 (112)

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   +1 more source

Enhanced Matrix Completion Method for Superresolution Tomography SAR Imaging: First Large-Scale Urban 3-D High-Resolution Results of LT-1 Satellites Using Monostatic Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
LuTan-1 (LT-1) constellation is an innovative distributed L-band spaceborne synthetic aperture radar (SAR), which can potentially provide tomographic mapping with twin satellites, i.e., tomographic SAR (TomoSAR) imaging.
Honghao Zhou, Gang Xu, Xiang-Gen Xia, Tao Li, Hanwen Yu, Yanyang Liu, Xiang Zhang, Mengdao Xing, Wei Hong   +8 more
doaj   +1 more source

Comparison between DInSAR and Stacking in Deformation Monitoring Using LuTan-1 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
LuTan-1 (LT-1) satellite constellation is used to conduct surface deformation monitoring. Following the successful launch of two satellites, we began to use the independently developed LandSAR software for differential interferometric data processing and
J. Lu, X. Tang, T. Li, X. Zhang, X. Zhang, T. Li, X. Qiu   +6 more
doaj   +1 more source

Demonstration of Phase-Preserving Synchronization RFI Suppression for L-Band Spaceborne Bistatic Interferometric SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spaceborne bistatic synthetic aperture radar (BiSAR) systems utilize an intersatellite link to achieve phase synchronization. However, radio frequency interference (RFI) from communication satellites and ground-based radars often contaminates the ...
Yanyan Zhang, Junfeng Li, Pingping Lu, Tianyuan Yang, Robert Wang   +4 more
doaj   +1 more source

Geometric Error Analysis and Correction of Long-Term In-Orbit Measured Calibration Data of the LuTan-1 SAR Satellite

Remote Sensing
LuTan-1 (LT-1) is China’s first L-band differential interferometric synthetic aperture radar system, comprising two multi-polarization SAR satellites, LT-1A and LT-1B.
Liyuan Liu, Aichun Wang, Mingxia Zhang, Qijin Han, Minghui Hou, Yanru Li   +5 more
doaj   +1 more source

3-D Joint Inversion of Urban Persistent and Distributed Scatterers via SAR Tomography

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Existing urban spaceborne synthetic aperture radar (SAR) tomography (TomoSAR) inversion methods predominantly focus on persistent scatterer (PS), while distributed scatterer (DS) constitute a substantial proportion of urban targets and provide critical ...
Youjun Wang, Zhen Dong, Xiantao Wang, Yanyang Liu, Yucheng Gao, Anxi Yu, Yifei Ji   +6 more
doaj   +1 more source

Detection of Small-Scale Potential Landslides in Vegetation-Covered Areas of the Hengduan Mountains Using LT-1 Imagery: A Case Study of the Luding Seismic Zone

Remote Sensing
The rugged terrain and dense vegetation in the mountainous area of Luding after the strong earthquake have made geologic hazards hidden and difficult to verify, and there are limitations in the fine-resolution monitoring of small-scale landslides ...
Hang Jiang, Xianhua Yang, Hui Wen, Xiaogang Wang, Chuanyang Lei, Rui Zhang   +5 more
doaj   +1 more source

Monitoring surface deformation dynamics in the mining subsidence area using LT-1 InSAR interferometry: A case study of Datong, China

International Journal of Applied Earth Observations and Geoinformation
Monitoring of mining-induced subsidence dynamics enables to the exploration and analysis of changes in the direction of surface deformation caused by the extraction of underground resources.
Liuru Hu, Xinming Tang, Roberto Tomás, Tao Li, Xiang Zhang, Zhiwei Li, Jiaqi Yao, Jing Lu   +7 more
doaj   +1 more source

Rapid Detection of Ionospheric Disturbances in L-Band InSAR Systems: A Case Study Using LT-1 Data

Remote Sensing
Ionospheric effects constitute a key error source limiting the accuracy of surface deformation monitoring using L-band interferometric synthetic aperture radar (InSAR).
Huaishuai Wang, Hongjun Song, Yulun Wu, Yang Liu, Jili Wang, Xiang Zhang   +5 more
doaj   +1 more source

Assessing Ground Deformation Dynamics and Driving Mechanisms in Beijing Using Integrated Sentinel-1A and LuTan-1 InSAR Observations

Remote Sensing
Ground deformation monitoring is pivotal for enhancing urban resilience and mitigating geohazards. This study presents a synergistic monitoring framework integrating 26 Sentinel-1A (C-band) and 16 LuTan-1 (L-band) SAR scenes acquired between December ...
Zhiwei Huang, Fengli Zhang, Yanan Jiao, Junna Yuan, Jingwen Yuan, Xiaochen Liu   +5 more
doaj   +1 more source