APPLICATION OF FM^mlet TRANSFORM TO SIGNAL SEPARATION  

作　　者：Dai Qionghai Zou Hongxing Li Yanda (Department of Automation, Tsinghua University, Beijing 100084) 

出　　处：《Journal of Electronics(China)》2002年第2期133-138,共6页电子科学学刊（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China under Grant No.60172026

摘　　要：Since the multicomponent signal with nonlinear time-frequency structures occupies a wide frequency band, and the spectral contents may alias, it is therefore difficult to separate the signal components and to separate the signal from Ijackground noise. In this paper, a new signal separation method using FMmlet transform is proposed by taking the advantage that the atoms of FMm let transform can match both the linear and nonlinear time-varying structures. Theoretical predictions and numerical experiments show the feasibility of the methodology advocated.Since the multicomponent signal with nonlinear time-frequency structures occupies a wide frequency band, and the spectral contents may alias, it is therefore difficult to separate the signal components and to separate the signal from background noise. In this paper, a new signal separation method using FMmlet transform is proposed by taking the advantage that the atoms of FMmlet transform can match both the linear and nonlinear time-varying structures. Theoretical predictions and numerical experiments show the feasibility of the methodology advocated.

关 键 词：FMmlet transform Parametric atomic decomposition Matching pursuit. Signal separation 

分 类 号：TN911.7[电子电信—通信与信息系统]