Design and implementation of a high precision EEG signal analogy generation system for brain-computer interface testing

doi:10.12267/j.issn.2096-5931.2024.05.005

Information and Communications Technology and Policy ›› 2024, Vol. 50 ›› Issue (5): 34-40.doi: 10.12267/j.issn.2096-5931.2024.05.005

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Design and implementation of a high precision EEG signal analogy generation system for brain-computer interface testing

HU Birong¹, WANG Xiaodong², WANG Haochong³, SHI Gaige³

1. Shaanxi Drug and Vaccine Inspection Center, Xi’an 723099,China
2. Shaanxi Medical Device Quality Inspection Institute, Xi’an 712046,China
3. School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China

Received:2024-04-15 Online:2024-05-25 Published:2024-05-31

Abstract

Abstract:

The basic hardware components of the brain-computer interface, such as electroencephalogram (EEG) acquisition chips or EEG collectors, are gradually being implemented. It is necessary to use an analog signal generator to test and verify the performance. A high-precision microvolt-level EEG signal analog generation system is proposed to address the issues of complexity, bulkiness, and low accuracy in traditional signal generation systems. After experimental verification, this system can generate microvolt-level sine waves, square waves, triangular waves, and EEG signals with a voltage generation error within ±1 μV. This meets the performance testing requirements of EEG acquisition chips or EEG collectors and provides a reference for research in brain-computer interface technology.

Key words: brain-computer interface testing, analog signal generator, EEG signals, system design

CLC Number:

TN98

HU Birong, WANG Xiaodong, WANG Haochong, SHI Gaige. Design and implementation of a high precision EEG signal analogy generation system for brain-computer interface testing[J]. Information and Communications Technology and Policy, 2024, 50(5): 34-40.

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http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2024.05.005

http://ictp.caict.ac.cn/EN/Y2024/V50/I5/34

Figures/Tables 7

References 15

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试验类型	波形种类	幅值(峰谷值)/μV	频率/Hz
标准波形(不同幅值)	正弦波	25、50、100、200	5
	三角波	25、50、100、200	5
	方波	25、50、100、200	5
标准波形(不同频率)	正弦波	100	1、5、10、20、30
	三角波	100	1、5、10、20、30
	方波	100	1、5、10、20、30
模拟脑电	模拟脑电	预采集的静息态脑电信号

试验类型	波形种类	幅值(峰谷值)/μV	频率/Hz
标准波形(不同幅值)	正弦波	25、50、100、200	5
	三角波	25、50、100、200	5
	方波	25、50、100、200	5
标准波形(不同频率)	正弦波	100	1、5、10、20、30
	三角波	100	1、5、10、20、30
	方波	100	1、5、10、20、30
模拟脑电	模拟脑电	预采集的静息态脑电信号

Design and implementation of a high precision EEG signal analogy generation system for brain-computer interface testing

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