Title :
A delay sub-space decomposition algorithm of electroencephalography sources localization
Author :
Zeng, Min ; Yao, Dezhong
Author_Institution :
Sch. of Life Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
We present a new EEG inverse algorithm utilized for extracting multi-sources in EEGs. It is based on multiple signal classification (MUSIC). A delay-correlation matrix instead of the previous zero-delay-correlation matrix is introduced to conduct the signal-sub-space estimate in the MUSIC algorithm to get a better performance when coping with spatially coherent noise disturbances. The effectiveness of the delay MUSIC (DM) is confirmed by the final promising results of a simulation test.
Keywords :
correlation methods; delays; electroencephalography; matrix algebra; medical signal processing; parameter estimation; random noise; signal classification; source separation; EEG inverse algorithm; MUSIC; brain imaging; delay sub-space decomposition algorithm; electroencephalography source localization; multiple signal classification; signal-subspace estimate; zero-delay-correlation matrix; Brain modeling; Cost function; Delay estimation; Delta modulation; Electroencephalography; Inverse problems; Magnetic resonance imaging; Multiple signal classification; Scalp; Spatial coherence;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1178978