用低通滤波原理，进行风电的削峰填谷。可以得出符合实际的风电储能效果 -Using low pass filtering principle, the peak to fill the valley of the wind. Can be concluded that conforms to the actual wind power energy storage effect

是一个数字图像处理的示例程序，将一个图像进行2维傅里叶变换，然后进行巴特沃斯高通和低通滤波。-Digital image processing is an example of a program, a two-dimensional Fourier transform of the image, and then Butterworth high-pass and low-pass filtering.

数字闪变仪，基于IEC模拟闪变仪而来，通过低通、高通滤波器、视感度加权滤波、平滑滤波后得到瞬时闪变视感度值。-Digital flicker meter, based on the IEC flicker meter analog, low pass, high pass filter, depending on the sensitivity weighted filtering, smoothing the instantaneous flicker sensation value.