合成孔径激光雷达采用激光作为信号载波，通过合成孔径技术实现高分辨率成像.由于激光波长较短，平台的振动将对激光雷达图像质量产生影响.基于成对回波理论，针对平台角振动对合成孔径激光雷达影响进行分析，详细推导角振动影响引起的成对回波的解析表达式，其影响表现为成对的虚假目标并且加窗压低旁瓣的处理方法对成对回波是无效的.最后通过仿真验证了分析结果，该结论为合成孔径激光雷达系统总体分析与设计提供了理论依据.

Synthetic aperture ladar (SAL), whose carrier is laser, makes use of synthetic aperture processing to improve the resolution of images. Vibrations from the platform of SAL would have effects on the imaging quality of SAL because of the short wavelength of laser. Firstly, based on the paired-echo theory, the effects of angle vibration on the imaging quality are analyzed. Then, the amplitude and the position of the paired-echoes are deduced in detail. It was found that the vibrations would result in paired false target which cannot be eliminated by the traditional windowing method used in suppressing the side-lobes. Finally, the simulations prove the validity of the analysis. It provides theoretical foundation for analysis and design of SAL system.