提出了合成孔径激光成像雷达(SAIL)的一种统一的工作模式, 即激光雷达运动的同时进行光束扫描。同时推导了点目标激光雷达方程, 据此还定义了SAIL二维数据收集方程, 二维数据收集方程组是合成孔径激光雷达的数据产生和收集过程中的完整数学表达, 并给出了统一模式的二维数据收集方程。从统一工作模式可以分解出条带扫描模式、聚束模式、滑动聚束模式和光束扫描模式, 及其相应的简化二维数据收集方程。上述的光束扫描模式是一种激光雷达和被观察面之间相对静止而只采用光束扫描实现孔径合成成像的新方法, 具有特殊的应用范围。

A unified operation mode of synthetic aperture imaging ladar (SAIL) with its linear moving and the footprint scanning is proposed. Moreover, we define a kind of two-dimensional (2-D) data collection equation based on the developed point target ladar equation, which is a complete mathematical description of data acquisition for 2-D SAIL imaging. The unified mode can be decomposed into strip-map mode, spotlight mode, sliding spotlight mode and beam scanning mode, and each correspondingly has a simplified 2-D data collection equation. The beam scanning mode with only the footprint scanning is a new mode, and has special applications.