摘要
根据数字滤波器实现模式和虚拟仪器的特点首次提出了虚拟滤波器的概念 ,即一种现场设置、设计、生成和作用的数字滤波器 .介绍了虚拟滤波器分类 ,分析讨论了 IIR、FIR两种滤波器的设计计算和程序流程 。
According to the physical models of the digital filter and the feature of a virtual instrument, the new concept of the virtual filter is brought forward firstly in this paper. A virtual filter is one that is set, designed, made and works in the field. Different virtual filters are presented. The design of IIR and FIR filter are described. The software flow of the virtual filter is discussed. And its application in the virtual vibration signal process instrument is considered.
基金
湖北省自然科学基金项目 2 0 0 0 J130
湖北省教育厅青年项目 2 0 0 0 B0 4 0 0 5
