光学合成孔径成像技术计算机仿真与实验验证

首先阐明了光学合成孔径成像系统的原理。合成孔径成像系统在获得高截止频率的同时,降低了系统的中频性能,并且合成孔径成像系统的信息获取在方向上具有可选择性。然后对合成孔径成像系统的点扩散函数和光学传递函数进行了计算机仿真,仿真结果与合成孔径系统的成像原理一致。最后通过对辐射靶标的成像实验,再次对合成孔径成像系统的特性进行了验证。

Computer simulation and experimental verification for optical synthetic aperture imaging technology

The theory of optical synthetic aperture imaging system is described with emphasis on the characteristics of the spatial frequency. The cut-off spatial frequency is got higher at the cost of the loss of mid-spatial frequency, and the information got by the system are different in all directions. Then the computer simulation of the point spread function and optical transfer function are done for the optical synthetic aperture imaging system. The simulation results are agreed with the characteristics of the synthetic imaging system. At last, a simple laboratory verification experiment is performed in which a starburst target is used.