TY - CONF
T1 - A new structure-based coregistration method for near-field ground-based MIMO tomographic SAR
AU - Li, Gen
AU - Zhu, Yu
AU - Zhao, Liangbo
AU - Ding, Zegang
AU - Wang, Yan
AU - Li, Linghao
AU - Liu, Minkun
N1 - Publisher Copyright:
© 2019 IEEE
PY - 2019
Y1 - 2019
N2 - Image coregistration is a key step in tomographic SAR (TomoSAR) signal processing, and the quality of coregistration directly determines the tomographic results. Traditional coregistration is performed based on the far-field assumption, where the scattering characteristics remain constant with different look angles and distances. However, for near-field TomoSAR observation, the traditional coregistration method will fail because of the mismatch caused by the change of scattering characteristics. In this study, we propose a new structure-based coregistration method for near-field ground-based MIMO TomoSAR. Corse coregistration based on the structure and fine coregistration combining correlation function and singular modification are conducted to achieve coregistration accurately and robustly. The validity of the presented approach is validated by real data.
AB - Image coregistration is a key step in tomographic SAR (TomoSAR) signal processing, and the quality of coregistration directly determines the tomographic results. Traditional coregistration is performed based on the far-field assumption, where the scattering characteristics remain constant with different look angles and distances. However, for near-field TomoSAR observation, the traditional coregistration method will fail because of the mismatch caused by the change of scattering characteristics. In this study, we propose a new structure-based coregistration method for near-field ground-based MIMO TomoSAR. Corse coregistration based on the structure and fine coregistration combining correlation function and singular modification are conducted to achieve coregistration accurately and robustly. The validity of the presented approach is validated by real data.
KW - Image registration
KW - Near-field
KW - Singular modification
KW - Structure
KW - TomoSAR
UR - http://www.scopus.com/inward/record.url?scp=85113844916&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2019.8900460
DO - 10.1109/IGARSS.2019.8900460
M3 - Paper
AN - SCOPUS:85113844916
SP - 3649
EP - 3652
T2 - 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019
Y2 - 28 July 2019 through 2 August 2019
ER -