time domain conversion

This paper discusses the application methods on solving frequency function and sets examples, In the two integral characters of time domain on Fourier conversion.

该文讨论傅氏变换中的二个时域积分特性，在求解频谱函数中的应用方法，并举例予以说明。

Moreover, according to input and output data, the method identifies parameters in time domain directly and obtains parameters of each transfer function block without conversion operations.

且根据输入输出采样数据直接在时域上进行参数辨识，方法简便，直接得到传递函数框图环节参数，无需转换。

The application of integral character of time domain on Fourier conversion

傅氏变换中的时域积分特性应用

The frequency-domain MOR approaches have been fully developed, but we are more interested in the time domain response of the circuits for the frequency domain approximation error can be magnified greatly by the frequency-time conversion.

频域模型降阶方法的研究已较为成熟，但对电路而言，更关注的是其时域行为。频域逼近的误差转换到时域会放大，时域逼近精度无法保证。