...or Discrete Cosine Transform）是与傅里叶变换相关的一种变换，它类似于离散傅里叶变换（DFT for Discrete Fourier Transform），但是只使用实数。
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A novel design method for the prototype filters of a Near Perfect Reconstruction (NPR) Discrete Fourier Transform (DFT) modulated filter bank is proposed.
提出了一种新的近似完全重构(npr)离散傅立叶变换(DFT)调制滤波器组的原型滤波器设计方法。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
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。
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