This paper gives some complementary pictures of the time domain approach and the frequency domain approach in system identification.

本文给出时域辨识与频域辨识相互补充的一些事实。

youdao

For the convenience of time -domain convolution, the vector fitting method is adopted to approach the characteristic impedance and delay function in complex frequency-domain.

为了便于时域卷积，对不同模量上的特征阻抗和延时函数在复频域采用矢量匹配法进行拟合。

youdao

Using the different time-frequency characteristics of wavelet and wavelet packet, the proposed approach can avoid the noise and complete the detection and classification of transient power quality.

该方法利用小波和小波包各自的时频分解特点，实现了暂态电能质量扰动的自动检测和分类。

youdao