Methods: the mathematic method is used to find a uniform expression for frequency aliasing matrix of different resolution images.
方法：用数学方法求解对应于低分辨率遥感图像的统一频谱混叠。
Methods: the mathematic method is used to find a uniform expression for frequency aliasing matrix of different resolution images.
方法：用数学方法求解对应于低分辨率遥感图像的统一频谱混叠。
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