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介绍了小波包分析的分解和重构算法;利用小波包分析对飞控系统的原始数据进行消噪预处理;基于“能量—信息”的数据信息辨识思想,应用小波包分析技术提取数据特征。给出一种飞控系统故障诊断方法。
The decomposition and reconstruction algorithms of wavelet packet analysis are introduced. The wavelet packet analysis is used to de-noising the original data of flight control system. Based on the idea of data-information identification of energy-information, wavelet packet analysis is used to extract the data features. A fault diagnosis method of flight control system is given.