从连续傅里叶变换出发，讨论连续傅里叶变换情况下的傅里叶变换性质，给出离散傅里叶变换情况下的傅里叶变换性质。
Starting from continuous Fourier transform, the properties of continuous Fourier transform are discussed, and the paper gives the properties of discrete Fourier transform.
应用离散傅里叶变换dft，通过MATLAB实现对连续信号频谱分析，以满足理论分析和工程实际的需要。
Application DFT Discrete Fourier Transform, right through MATLAB continuous signal spectrum analysis, in order to meet the theoretical analysis and practical needs.
利用傅里叶变换红外(FTIR)光谱技术可以对气体组分的浓度进行连续的在线定量分析。
Fourier transform infrared spectroscopy (FTIR) can be used for the continuously on line quantitative determination of the concentrations of several gas components in smoke gas.
利用傅里叶变换红外(FTIR)光谱技术可以对气体组分的浓度进行连续的在线定量分析。
Fourier transform infrared spectroscopy (FTIR) can be used for the continuously on line quantitative determination of the concentrations of several gas components in smoke gas.
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