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根据经典Fourier分析中关于L2(R2)的直和分解,利用近期信号分析中由Mbius变换引出的一系列结果,得到了更为广泛的直和分解,证明了其所有子空间在Fourier变换下保持不变,并且推出了其子空间里任意函数Fourier变换的具体表达式。
According to the direct and decomposition of L2 (R2) in classical Fourier analysis, a series of results derived from the Mbius transformation in the recent signal analysis are used to obtain a more generalized and decomposed result. All of the subspaces in Fourier transform Under constant, and introduced the concrete expression of arbitrary function Fourier transform in its subspace.