公开(公告)号：US20100149024A1

公开(公告)日：2010-06-17

申请号：US12656689

申请日：2010-02-12

申请人： Scott D. Connell ,  Edward F. Gabl ,  Mark A. Ricoy ,  Elizabeth T. Batteh ,  Rod S. Goodman

发明人： Scott D. Connell ,  Edward F. Gabl ,  Mark A. Ricoy ,  Elizabeth T. Batteh ,  Rod S. Goodman

IPC分类号： G01S13/90

CPC分类号： G01S13/9011

摘要： Provided are two-dimensional autofocus methods in a synthetic aperture radar (SAR) system which include: (1) two-dimensional pulse pair product algorithm including shear PGA, eigenvector phase history (“EPH”), shear PGA/EPH); (2) two-dimensional optimization algorithms including parametric one-dimensional estimate/two-dimensional correction, parametric two dimensional estimate/two-dimensional correction, unconstrained two-dimensional nonparametric and constrained two-dimensional nonparametric methods; (3) a two-dimensional geometry filter algorithm; (4) a two-dimensional prominent point processing algorithm; (5) a one-dimensional phase estimate of higher order two dimensional phase errors; and, (6) a fast SHARP parametric autofocus algorithm.

摘要翻译： 提供了一种合成孔径雷达（SAR）系统中的二维自动对焦方法，包括：（1）包括剪切PGA，特征向量相位历史（“EPH”），剪切PGA / EPH的二维脉冲对产品算法; （2）二维优化算法，包括参数一维估计/二维校正，参数二维估计/二维校正，无约束二维非参数和约束二维非参数方法; （3）二维几何滤波算法; （4）二维突出点处理算法; （5）高阶二维相位误差的一维相位估计; 和（6）快速SHARP参数自动对焦算法。