In this paper, the method for carrying out the image reconstruction by means of the 2-dimensional discrete Fourier transform (DFT) is introduced in detail.
本文详细地介绍了利用二维离散付里叶变换(DFT)进行图象复原的方法。
In this paper, we derived the conservation laws of 1 + 1, 2 + 1 dimensional differential-difference equations on the base of discrete spectral problems through a direct method.
本文基于谱问题的特点利用直接方法导出了1 + 1、2 + 1维微分—差分方程的无穷多守恒律。
The stability test theorems in frequency domain for two-dimensional (2-d) discrete systems have been presented in the paper, which can be used to 2-d discrete systems with arbitrary order.
本文提出的二维离散系统的频域稳定性检验定理可用于任意阶次的二维离散系统稳定性检验。
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