It is then subject to such mathematical indignities as wavelet decomposition, multi-resolution Fourier analysis, polyphase filtering and discrete cosine transformation.

接下来它还要经过一些数学处理程序，比如小波分解，多重分辨率傅立叶分析，多相过滤，离散余弦变换等。

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This paper discusses a principal problem in grey mathematical theory, that is grey set and its operation, and proves the decomposition theorem, representation theorem and extension principle.

讨论灰色数学理论的一个基本问题，即灰色集合以及它的有关运算，灰集的分解定理、表现定理和扩张原理。

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In this paper, by using a method of Fourier decomposition, a mathematical model describing dynamic characteristics of cascade STATCOM devices is presented.

该文通过傅立叶分解的方法，建立了链式STATCOM的数学模型。

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