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用多孔阵列作为编码孔径对文字图象卷积和解卷积,可以构成一个文件的非相干光编码,译码系统。在此系统中,译码器输出的信噪比直接取决于编码孔径的自相关特性。本文在此较了几种编码孔径自相关特性的基础上,着重研究了非冗余阵列的设计计算,并将非冗余阵列构成的编码孔径实际应用用于文件的非相干光编码、译码系统中,得出了比随机点阵列更好的效果。
Convolution and deconvolution of a text image using a multi-aperture array as a coding aperture can constitute a single file of incoherent optical encoding and decoding system. In this system, the signal-to-noise ratio of the decoder output directly depends on the autocorrelation of the coded aperture. In this paper, compared with several kinds of coding aperture autocorrelation characteristics, this paper focuses on the design and calculation of non-redundant array, and the non-redundant array of coding aperture practical application of non-coherent optical file encoding, decoding In the system, we get a better result than the random point array.