flickering signal meaning in Chinese

闪光信号

As iec flickering measurement method can only be applyed to analyze stable flickering signals , this paper applies hilbert - huang transform , the latest time - frequency analyzing method , to deal with the non - stationary flickering signals
针对iec闪变测量方法仅适用于分析平稳闪变信号的不足,本文应用最新时频分析方法hilbert - huang变换来分析非平稳闪变信号。
The transform uses the scale of the signal to decompose and make self - adapting frequency band partition of the input signals . therefore the amplitude value and the modulating frequency of the flickering signal can be obtained . with the instantaneous frequency in this method , the present study also analyzes the signal in terms of both time and frequency , and thus gets the time at which the flickering signal occurs and terminates
运用该变换从信号本身的尺度特征出发对信号进行分解的特点,对输入信号进行自适应的频带划分,从而求出了闪变的调制信号幅值和调制频率;利用该方法中的瞬时频率概念,从时频两方面同时对信号进行分析,从而获得了闪变信号的发生时刻和终止时刻,得到了较好的检测效果。