摘要
介绍了FFT-FS频谱细化方法.该方法在不增加采样点数的前提下,对所关心的频带进行细化,能够得到准确的频率值.给出了运用振动测量数据频谱分析进行导弹结构故障判断的方法.通过一个结构故障判断的例子,说明了该方法是有效的。
The FPr-FS spectrum zooming method is introduced. Without adding samples, accurate frequency in the related frequency scope is got. The method of fault diagnosis of missile structure using the spectrum analysis of vibration data is illustrated. It is demontrated by an example of diagnosis of missile structure that this method is effective.
出处
《战术导弹技术》
2009年第4期36-38,12,共4页
Tactical Missile Technology
关键词
频谱分析
频谱细化
故障诊断
spectrum analysis
spectrum zooming
fault diagnosis
