Abstract：The estimation of rotation angle is the precondition for ISAR imaging. In this passage, a new method based on the analysis of the echo signals is proposed. The signals in different range bin are approximated as the multi-component third-order polynomial signals, and the proportion of third-order phase coefficient to first-order phase coefficient is constant just equal to the square of the rotation rate. Then the parameters of the third-order polynomial signal are estimated by the maximum likelihood method. The results of real data show the validity of the method proposed.
王勇; 姜义成. 一种估计ISAR成像转角的新方法[J]. 电子与信息学报, 2007, 29(3): 521-523 .
Wang Yong; Jiang Yi-cheng. A New Method for Estimating the Rotation Angle of ISAR Image. , 2007, 29(3): 521-523 .
2007, Vol. 29 
