TY - JOUR
T1 - Characterization and Mitigation of RFI Artifacts in Operationally Processed LuTan-1 Imagery
AU - Liu, Yifei
AU - Tao, Mingliang
AU - Li, Tao
AU - Liu, Yanyang
AU - Chen, Junli
N1 - Publisher Copyright:
© The Institution of Engineering & Technology 2023.
PY - 2023
Y1 - 2023
N2 - LuTan-l satellite is China's first L-band distributed spaceborne interferometric synthetic aperture radar (InSAR) mission, serving land resource management, mapping, forestry, and disaster preparedness purposes. However, the presence of radio frequency interference (RFI) in the shared L-band spectrum poses a significant threat to obtaining a high-quality digital elevation model (DEM) and deformation monitoring. This paper examines RFI issues in LuTan-1 InSAR mission, derives interference echo model, and analyses adverse impact on interferometric coherence. An automated RFI detection and mitigation pipeline is proposed for the Lutan-1 ground processing system, capable of managing massive image datasets without manual tuning parameters. Experiments with real LuTan-1 mission data, including various scenarios and RFI instances, demonstrate the proposed scheme's effectiveness in eliminating RFI artifacts and improving image quality and coherence. This solution has been integrated into LuTan-1's processing pipeline for practical use.
AB - LuTan-l satellite is China's first L-band distributed spaceborne interferometric synthetic aperture radar (InSAR) mission, serving land resource management, mapping, forestry, and disaster preparedness purposes. However, the presence of radio frequency interference (RFI) in the shared L-band spectrum poses a significant threat to obtaining a high-quality digital elevation model (DEM) and deformation monitoring. This paper examines RFI issues in LuTan-1 InSAR mission, derives interference echo model, and analyses adverse impact on interferometric coherence. An automated RFI detection and mitigation pipeline is proposed for the Lutan-1 ground processing system, capable of managing massive image datasets without manual tuning parameters. Experiments with real LuTan-1 mission data, including various scenarios and RFI instances, demonstrate the proposed scheme's effectiveness in eliminating RFI artifacts and improving image quality and coherence. This solution has been integrated into LuTan-1's processing pipeline for practical use.
KW - Interferometry Coherence
KW - Lutan-1
KW - Mitigation
KW - Radio Frequency Interference (RFI)
KW - RFI Characterization
KW - Synthetic Aperture Radar (SAR)
UR - http://www.scopus.com/inward/record.url?scp=85203147989&partnerID=8YFLogxK
U2 - 10.1049/icp.2024.1542
DO - 10.1049/icp.2024.1542
M3 - 会议文章
AN - SCOPUS:85203147989
SN - 2732-4494
VL - 2023
SP - 2841
EP - 2844
JO - IET Conference Proceedings
JF - IET Conference Proceedings
IS - 47
T2 - IET International Radar Conference 2023, IRC 2023
Y2 - 3 December 2023 through 5 December 2023
ER -