Title :
Source number estimation based on wavelet packet and singular value decomposition
Author :
Wu, Wenfeng ; Su, Xunjia ; Chen, Xiaohu ; Hou, Genliang
Author_Institution :
Xi´´an Res. Inst. of Hi-Tech, Xi´´an, China
Abstract :
In the applications of blind source separation, source number estimation is a hotspot and difficulty on the condition of multi-channel observation number less than independent source number. Here an algorithm of source number estimation based on wavelet packet and singular value decomposition is proposed. Especially it combines mechanism analysis, wavelet packet analysis and singular value decomposition. Computer simulation shows this method is satisfied to estimate independent source number on the condition of multi-channel observation number less than independent source number.
Keywords :
blind source separation; singular value decomposition; wavelet transforms; blind source separation; mechanism analysis; multichannel observation number; singular value decomposition; source number estimation; wavelet packet analysis; Computational modeling; Covariance matrix; Eigenvalues and eigenfunctions; Estimation; Matrix decomposition; Noise; Numerical models; Dominate eigenvalue; Singular value decomposition; Source number estimation; Wavelet packet analysis;
Conference_Titel :
Intelligent Computing and Intelligent Systems (ICIS), 2010 IEEE International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-6582-8
DOI :
10.1109/ICICISYS.2010.5658439
