TY - GEN
T1 - Image formation algorithm with motion compensation for forward-looking bistatic SAR
AU - Qi, Chundong
AU - Zeng, Tao
AU - Li, Feng
PY - 2011
Y1 - 2011
N2 - The paper concentrates on image formation method for the practical forward-looking bistatic SAR (FL-BiSAR). In the FL-BiSAR configuration presented in the paper, the transmitter operates in the broadside mode, while the receiver is dynamic toward the target. In practical applications, however, the platforms cannot maintain constant velocity or move with acceleration. Considering the influence to form image, the actual aperture is split into subapertures. It is reasonably assumed the platforms move with constant acceleration vector in a subaperture when the subaperture is small enough. The equivalent bistatic squint range model incorporating three-dimensional acceleration and velocity is deduced. Based on this model, an improved CS algorithm with new phase compensation factors for FL-BiSAR is proposed. The simulation results show that the imaging quality processed by the proposed method is close to the value of the BP algorithm.
AB - The paper concentrates on image formation method for the practical forward-looking bistatic SAR (FL-BiSAR). In the FL-BiSAR configuration presented in the paper, the transmitter operates in the broadside mode, while the receiver is dynamic toward the target. In practical applications, however, the platforms cannot maintain constant velocity or move with acceleration. Considering the influence to form image, the actual aperture is split into subapertures. It is reasonably assumed the platforms move with constant acceleration vector in a subaperture when the subaperture is small enough. The equivalent bistatic squint range model incorporating three-dimensional acceleration and velocity is deduced. Based on this model, an improved CS algorithm with new phase compensation factors for FL-BiSAR is proposed. The simulation results show that the imaging quality processed by the proposed method is close to the value of the BP algorithm.
KW - Chirp scaling algorithm
KW - Forward-looking bistatic SAR
KW - Motion compensation
UR - http://www.scopus.com/inward/record.url?scp=84858992815&partnerID=8YFLogxK
U2 - 10.1109/CIE-Radar.2011.6159835
DO - 10.1109/CIE-Radar.2011.6159835
M3 - Conference contribution
AN - SCOPUS:84858992815
SN - 9781424484416
T3 - Proceedings of 2011 IEEE CIE International Conference on Radar, RADAR 2011
SP - 1456
EP - 1458
BT - Proceedings of 2011 IEEE CIE International Conference on Radar, RADAR 2011
T2 - 6th International Conference on Radar, RADAR 2011
Y2 - 24 October 2011 through 27 October 2011
ER -