在光学波长的尺度上,几乎没有目标可被认为是静止的,因此,目标振动对合成孔径激光雷达(SAL)成像可能有较大影响。对此问题,基于衍射光学,建立了在目标作简谐振动的情况下,采用准单色光线性调频光源照明的条带模式SAL的成像数学方程,分析和讨论了目标振动参数对SAL成像的影响,并给出了若干数学仿真演示。结果表明,SAL成像对目标振动非常敏感,在距离方向上目标微小的振动可使SAL系统在方位向上产生一系列虚假像,严重影响SAL高分辨率成像的实现。 Almost none of the targets at the optical wavelength scale can be considered as stationary, so the target vibration may have a large impact on Synthetic Aperture Laser Radar (SAL) imaging. For this problem, based on the diffraction optics, the imaging mathematical equation of strip mode SAL illuminated by a quasi-monochromatic linear frequency-modulated light source under the condition of simple harmonic vibration is established, and the imaging parameters Influence, and gives a number of mathematical simulation demo. The results show that the SAL imaging is very sensitive to the target vibration. The slight vibration of the target in the distance direction can cause the SAL system to generate a series of false images azimuthally, which seriously affects the realization of SAL high resolution imaging.