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提出了应用计算全息制作改进的Ｍｅｘｉｃａｎ－ｈａｔ子波匹配滤波器，在一个光学４ｆ系统中实现了二维子波变换，给出了简要的理论分析和实验结果，实验结果与计算机模拟完全一致。
In this paper, an improved Mexican-hat wavelet matching filter based on hologram is proposed. Two-dimensional wavelet transform is implemented in an optical 4f system. The theoretical analysis and experimental results are given. The experimental results are in good agreement with the computer simulation.