transient information meaning in English
临时资料
Examples
- Because of good time - frequency localization , it is suitable for wavelet to analysis the transient information of radar echo and extract signal feature
小波分析因其具有良好的时频局部性非常适合分析雷达回波的瞬态信息并提取回波信号的物征。 - Since that the choosing line hardware for the neutral ungrounded system has just passed part of the dynamic simulative test , matlab software was chosen to do a lot of simulative tests on single phase - to - grounding fault . and the simulative sampling ratio is almost the same as the hardware ' s . because there is a low wave filter in the hardware , i choose the db15 wave - let to carry out the multidimensional decomposition on the sample by the method of one dimension discrete wavelet in order to obtain low frequency signal including the high frequency transient information on single phase - to - grounding fault
鉴于实验室已有的小电流接地系统选线硬件的研制只通过了实验室里的动模试验，故选用matlab软件对小电流接地系统进行大量的单相接地故障仿真试验，仿真的采样率和硬件基本一致，由于硬件中带有低通滤波器，故在进行采样数据的morlet小波分析时先采用db15小波对采样进行一维离散小波的多尺度分解，使得分解得到的低频信号刚好包括了小电流接地系统单相接地故障时的暂态高频信息，然后对这一信息再继续进行小波算法分析，分析结论表明利用变换后的实部、虚部和模值能够较准确的实现单相接地故障时的故障选线和暂态高频分量的提取。