一种改进经验模态分解及其在信号中的应用，可以参考的文献。-An improved empirical mode decomposition and its application in signal, reference literature.

提出了基于内禀模态高频积分能量法的爆震因子计算方法棶该方法对电控二冲程煤油发动机缸 内燃烧压力信号进行经验模态分解棳自适应得到若干内禀模态函数分量与残余函数棶对内禀模态函数分量采 用快速傅里叶变换得到爆震高频信号分量-Proposed calculation is based on intrinsic factor knock modal method of high frequency integrated energy law