digital discrete signal 数字离散信号
In random signal processing or simulating systems, the test of discrete digital signal randomicity is often needed. By which the compositions or the specialties can be testified.
在随机信号测量或仿真系统中，经常需要对离散数据信号进行随机性检验，以确定待测信号的特性或组成成分。
One of the most common digital-signal-processing techniques is the discrete Fourier transform (DFT), which breaks a signal into its component frequencies and can be represented as a matrix.
最常见的数字信号处理技术之一是离散傅立叶变换（DFT），它把一个信号分解成它的组成频率，并表示成一个矩阵。
The Discrete Fourier Transform (DFT) plays an important role in digital signal processing and many other fields.
离散傅里叶变换（DFT）在数字信号处理等许多领域中起着重要作用。
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