TY - GEN
T1 - A SAR motion compensation method combining inertial measurement error and FrFT
AU - Zhou, Jiaqi
AU - Zhang, Yachong
AU - Cheng, Yongmei
N1 - Publisher Copyright:
© 2024 Copyright held by the owner/author(s).
PY - 2025/2/18
Y1 - 2025/2/18
N2 - In order to compensate the Quadric phase error generated during SAR imaging and meet the requirements of real-time imaging, this paper proposes a SAR motion compensation method for combining inertial measurement error and FrFT. Due to hardware limitations, there is an inevitable Quadric position error in IMU measurement. In this paper, the error and measurement frequency rate is used to determine the range of the real frequency rate, so as to determine the FrFT fractional range, using the amplitude characteristics to search the best fractional order, corresponding to the real frequency rate, then using this frequency rate for motion compensation. Through point target imaging, it is demonstrated that this method can achieve high-precision imaging while maintaining computational efficiency.
AB - In order to compensate the Quadric phase error generated during SAR imaging and meet the requirements of real-time imaging, this paper proposes a SAR motion compensation method for combining inertial measurement error and FrFT. Due to hardware limitations, there is an inevitable Quadric position error in IMU measurement. In this paper, the error and measurement frequency rate is used to determine the range of the real frequency rate, so as to determine the FrFT fractional range, using the amplitude characteristics to search the best fractional order, corresponding to the real frequency rate, then using this frequency rate for motion compensation. Through point target imaging, it is demonstrated that this method can achieve high-precision imaging while maintaining computational efficiency.
KW - fractional Fourier transform
KW - Inertial Measurement Unit
KW - Quadric Phase Errors
KW - Synthetic aperture radar
UR - http://www.scopus.com/inward/record.url?scp=85219633801&partnerID=8YFLogxK
U2 - 10.1145/3712335.3712376
DO - 10.1145/3712335.3712376
M3 - 会议稿件
AN - SCOPUS:85219633801
T3 - Proceedings of the 3rd International Conference on Signal Processing, Computer Networks and Communications, SPCNC 2024
SP - 234
EP - 238
BT - Proceedings of the 3rd International Conference on Signal Processing, Computer Networks and Communications, SPCNC 2024
PB - Association for Computing Machinery, Inc
T2 - 3rd International Conference on Signal Processing, Computer Networks and Communications, SPCNC 2024
Y2 - 22 December 2024 through 24 December 2024
ER -