TY - GEN
T1 - Back-projection algorithm characteristic analysis in forward-looking bistatic SAR
AU - DaZhi, Zeng
AU - Tao, Zeng
AU - Cheng, Hu
AU - Teng, Long
PY - 2007
Y1 - 2007
N2 - The transmitter and receiver trajectories are extremely asymmetric in Forward Looking Bistatic SAR (FL-BSAR), so it is difficult and not straightforward to apply general frequency domain imaging algorithms in FL-BSAR imaging. The back-projection algorithm is operating in the time domain, therefore it can be directly used for FL-BSAR image formation. In this paper, the error of the back-projection (BP) algorithm for FL-BSAR is analyzed in detail. The result of the error analysis is validated by applying the proposed error criterion on real data. Moreover, under the case of FL-BSAR, the equation describing the sidelobes of the BP algorithm in the cross-range direction is derived and presented in closed form. Finally, the derived equation is verified by simulation.
AB - The transmitter and receiver trajectories are extremely asymmetric in Forward Looking Bistatic SAR (FL-BSAR), so it is difficult and not straightforward to apply general frequency domain imaging algorithms in FL-BSAR imaging. The back-projection algorithm is operating in the time domain, therefore it can be directly used for FL-BSAR image formation. In this paper, the error of the back-projection (BP) algorithm for FL-BSAR is analyzed in detail. The result of the error analysis is validated by applying the proposed error criterion on real data. Moreover, under the case of FL-BSAR, the equation describing the sidelobes of the BP algorithm in the cross-range direction is derived and presented in closed form. Finally, the derived equation is verified by simulation.
KW - BSAR
KW - Back-projection algorithm
KW - Error, cross-range
KW - Forward looking
KW - Side-lobe
UR - http://www.scopus.com/inward/record.url?scp=34547656086&partnerID=8YFLogxK
U2 - 10.1109/ICR.2006.343181
DO - 10.1109/ICR.2006.343181
M3 - Conference contribution
AN - SCOPUS:34547656086
SN - 0780395824
SN - 9780780395824
T3 - CIE International Conference of Radar Proceedings
BT - 2006 CIE International Conference on Radar, ICR 2006
T2 - 2006 CIE International Conference on Radar, ICR 2006
Y2 - 16 October 2006 through 19 October 2006
ER -