一种测定复杂介质的实时算法

对目标介质的实时测定与识别是为引信提供稳定、实时的决策的重要基础。基于规则的特征提取方法是一种全新思路的目标介质实时测定方法。该方法利用加速度信号强度、加速度信号导数值以及加速度信号陡变等三个方面提取相应特征值，以确定被侵彻介质的性质和类别。采用这种方法对典型的介质数据的测定结果相当准确，与以往决策算法相比，该方法实现简单、应用范围广、灵敏度高。

A Real-time Algorithm for Measurement of Complicated Medium

Real time measurement of complicated medium is one of the important items to provide a robust, real-time and intelligent detonation decision for the fuze. Rule based feature extraction is a fresh concept measuring method. The features are selected in the following categories: the intensity of signals, the magnitude of their derivative and the measure of sudden changes. The result of the real-time identification of a medium with the method shows that the classifier provides a perfect identification for typical medium data sets. Compared with previous methods the real-time identification method can identifies much more medium and multilayer medium. The process of it is sensitive and it is simple and convenient to utilize in the practice.