论文部分内容阅读
进行了相移合成孔径数字全息的分析与实验研究,分别给出了合成孔径数字全息和相移合成孔径数字全息图的数学表述方法,提出一种用物光场强度图像与多步相移子全息图结合进行相移子孔径数字全息图的合成方法。先以物光场强度图像之间重叠区域的相关运算精确地确定子全息图之间的空间对接位置,在此基础上,再通过相移子全息图之间的重叠区域的相关运算进行相移同步匹配,实现了空间对接匹配与相移同步匹配的分离实施。以2#分辨率板为物体进行了相应的实验研究,子全息图的空间对接匹配的相关系数和相移同步匹配的相关系数均超过了0.99,获得了高质量的再现像,证明了方法的可行性和优点。
The numerical holographic analysis and experimental research on phase-shift synthetic aperture were carried out. The mathematical expressions of digital holography and phase-shift synthetic aperture digital hologram were given respectively. Hologram combination phase shift subaperture digital hologram synthesis method. Firstly, the space docking position between the sub-holograms is accurately determined by the correlation operation of the overlapping regions between the object light field intensity images. On the basis of this, the phase shift is performed by the correlation operation of the overlapping regions between the phase-shift sub-holograms Synchronous matching, to achieve the space docking matching and phase shift synchronization matching separation implementation. Corresponding experimental studies on the 2 # resolution plate are carried out. The correlation coefficients of the space docking matching and the phase shift synchronization matching of the sub-hologram all exceed 0.99, and the high quality reconstruction images are obtained, which proves the validity of the method Feasibility and merit.