TY - GEN
T1 - Influence of Time Synchronization Error on Bistatic Geo SAR Imaging
AU - Zhang, Wentao
AU - Dong, Xichao
AU - Chen, Zhiyang
AU - Hu, Cheng
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The errors of time and frequency synchronization in bistatic synthetic aperture radar (SAR) can have serious impacts on SAR images, if not compensated well. In this paper, we analyze the influence of time synchronization error on bistatic geosynchronous SAR (GEO SAR) imaging. First, the GEO SAR echo signal model under the influence of time synchronization error is established, through which the impacts of the constant, linear and random time synchronization errors on imaging are analyzed theoretically. Second, the theoretical analyses were verified by simulations. In addition, through simulations, the influences of the time synchronization error on low earth orbit SAR (LEO SAR) and GEO SAR are compared. The results show that the impacts of the constant, linear and random terms on GEO SAR are the same, greater and slighter compared with those on LEO SAR, respectively. This study provides a theoretical basis for future research on the time synchronization technology of multi static GEO SAR.
AB - The errors of time and frequency synchronization in bistatic synthetic aperture radar (SAR) can have serious impacts on SAR images, if not compensated well. In this paper, we analyze the influence of time synchronization error on bistatic geosynchronous SAR (GEO SAR) imaging. First, the GEO SAR echo signal model under the influence of time synchronization error is established, through which the impacts of the constant, linear and random time synchronization errors on imaging are analyzed theoretically. Second, the theoretical analyses were verified by simulations. In addition, through simulations, the influences of the time synchronization error on low earth orbit SAR (LEO SAR) and GEO SAR are compared. The results show that the impacts of the constant, linear and random terms on GEO SAR are the same, greater and slighter compared with those on LEO SAR, respectively. This study provides a theoretical basis for future research on the time synchronization technology of multi static GEO SAR.
KW - Geosynchronous Synthetic Aperture Radar (GEO SAR)
KW - bistatic SAR
KW - time synchronization
UR - http://www.scopus.com/inward/record.url?scp=85140357459&partnerID=8YFLogxK
U2 - 10.1109/IGARSS46834.2022.9883105
DO - 10.1109/IGARSS46834.2022.9883105
M3 - Conference contribution
AN - SCOPUS:85140357459
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 1856
EP - 1859
BT - IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022
Y2 - 17 July 2022 through 22 July 2022
ER -