Design and Implementation of a Wearable, Wireless EEG Recording System

Biosensor monitoring systems have been attracted great interest, stimulated by recent, significant advances in electronic, communications and information technologies. For instance, electroencephalography (EEG) is the most studied potential non-invasive interface in brain-computer interface (BCI), a hot topic aiming at creating a direct link between the brain and a computer. However, most BCI systems use bulky and wired EEG measurements, which is uncomfortable and inconvenient for users to perform daily-life tasks in. To address this concern, in this paper, we develop a wearable, wireless EEG acquisition and recording system, including a data acquisition unit and a data transmission and receiving unit. Our testing results show that the proposed design is effective with high common-mode rejection ratio (CMRR). The developed EEG system is suitable for biomedical applications such as patient monitoring and BCI.