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鉴于对非平稳信号处理的传统方法的局限，本文分析了子波变换下奇异信号和白噪声在多尺度空间中模极大值传播特性。对复合材料所受冲击信号进行处理，提出一种对相似信号进行归类的方法，该方法能实时有效地从冲击信号中提取冲击的大小及位置信息，并对复合材料冲击损伤准确定位。
In view of the limitations of the traditional methods for non-stationary signal processing, this paper analyzes the propagation characteristics of the maxima of singular signals and white noises in multi-scale space under the wavelet transform. In this paper, a method of classifying similar signals is proposed, which can extract the impact size and position information from the impact signal in real time and locate the impact damage of the composite material accurately.