【摘要】 根据头表观测电位反演脑电源的空间信息是脑电研究中的一个重要问题 .本文提出了脑电逆问题的延时相关阵子空间分解算法 .通过在三层同心球头模型上 ,与现行延时为零的相关阵子空间分解算法的对比研究表明 ,该方法能更好的压制空间相干噪音 ,显示了一定的应用前景更多还原

【Abstract】 It is an important topic in EEG research to localize the EEG activity sources from the scalp recordings.In this paper,a new sub space decomposition algorithm is proposed for the EEG inverse problem,which is based on the delay correlation matrix,and the popular sub space decomposition algorithm is the special case that the delay is zero.Computer simulation study on a three layer concentric sphere head model shows its better performance for depressing the spatial coherence noise than the zero delay popular algorithm.更多还原