TY - GEN
T1 - Motion estimation and compensation in SAR/ISAR imaging
AU - Yang, H.
AU - Soumekh, M.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - This paper presents a SAR coherent system model and inversion to image a target moving with an unknown constant velocity in a stationary background. It is shown that SAR imaging of a moving target can be converted into imaging the target in a stationary squint-mode SAR problem where the parameters of the squint-mode geometry depend on the target's velocity. A method for estimating the moving target's velocity that utilizes a spatial Doppler analysis of the SAR data within overlapping subapertures is presented. On estimating a moving target's velocity, unlike the temporal Doppler processing methods, the spatial Doppler technique does not require the radar signal to be narrowband. Thus, the reconstructed image's resolution is not sacrificed to improve the target's velocity estimator.
AB - This paper presents a SAR coherent system model and inversion to image a target moving with an unknown constant velocity in a stationary background. It is shown that SAR imaging of a moving target can be converted into imaging the target in a stationary squint-mode SAR problem where the parameters of the squint-mode geometry depend on the target's velocity. A method for estimating the moving target's velocity that utilizes a spatial Doppler analysis of the SAR data within overlapping subapertures is presented. On estimating a moving target's velocity, unlike the temporal Doppler processing methods, the spatial Doppler technique does not require the radar signal to be narrowband. Thus, the reconstructed image's resolution is not sacrificed to improve the target's velocity estimator.
UR - https://www.scopus.com/pages/publications/85019562752
U2 - 10.1109/ICASSP.1992.226287
DO - 10.1109/ICASSP.1992.226287
M3 - Conference contribution
AN - SCOPUS:85019562752
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 17
EP - 20
BT - ICASSP 1992 - 1992 International Conference on Acoustics, Speech, and Signal Processing
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992
Y2 - 23 March 1992 through 26 March 1992
ER -