摘要
介绍了一种基于离散傅氏变换 (DFT)和逆离散傅氏变换 (IDFT)算法的信号滤波技术 .利用该技术高频 A/ D采样的数据经滤波处理后可直接抽取而得到低频采样的数据 .
A method of realizing digital filter based on DFT and IDFT is introduced. The data of high speed sample could be abstracted to form a new data collection of low speed sample by this method. The application of this method in evaluation of vibration is also presented.
出处
《福建农业大学学报》
CSCD
2000年第2期247-249,共3页
Journal of Fujian Agricultural University
