【作者】 刘卓夫； 廖振鹏； 桑恩方；

【Author】 Liu Zhuofu~(1,2),Liao Zhengpeng~(1,2),Sang Enfang~2 (1.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150001,China) (2.College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China)

【机构】 中国地震局工程力学研究所； 哈尔滨工程大学水声工程学院；

【摘要】 对希尔伯特黄变换理论进行了简要地介绍,研究了希尔伯特黄变换的经验模态分解过程和有噪信号的固有模态函数特征。通过研究,设计了一种基于希尔伯特黄变换的滤波器。将该滤波器应用于信号去噪,收到了满意地效果。更多还原

【Abstract】 The newly developed Hilbert-Huang Transform(HHT) is introduced briefly in this paper.The law of its Empirical Mode Decomposition(EMD) and characteristics of the Intrinsic Mode Functions(IMFs) of a signal with noise are studied.Based on these studies,we design a new filter using HHT.In the application,the HHT has been used to enhance the performance of signals by removing unwanted noise and the performance of the algorithm is satisfactory.更多还原