菲涅耳编码孔成象研究

IMAGING RESEARCH OF FRESNEL CODED APERTURE

编码孔成象（ＣＡＩ）是一种高分辨率、高信噪比、高集光效率和大视场的成象技术。可适用的技术领域有：脉冲射线成象、实时图象跟踪、层析摄影术（ｔｏｍｏｇｒａｐｈｙ）等高技术领域本文探讨了ＣＡＩ技术的一般理论，重点讨论了菲涅耳波带片的编码成象及解码复原的原理、方法、实验及处理结果并指出了实验难点及结果误差。

Coded aperture imaging (CAI) is a special imaging technology with high resolva-bility,high SNR, high collectivity of light and large visual field. It is applicable to followingtechnique areas:pulse ray imaging,real time tracking,tomography and other high tech-nology etc. In this paper.general theocy of CAI is discussed.The principle,method and experimentof the CHI and decoded restoration with Fresnel zone plate (FZP) are discussed specially,The difficult point and error in the experiment are point out.