intrinsic mode functions短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 固有模态函数 First, using local wave decomposition method, we can decompose any complicated nonstationary signal into a finite and often small number of intrinsic mode functions. 该方法扩展了传统的时变参数模型法的应用范围，可用于一些复杂的非线性、非平稳信号的处理。 fabiao