面向脑机接口测试的高精度脑电信号模拟发生系统设计与实现
Design and implementation of a high precision EEG signal analogy generation system for brain-computer interface testing
胡碧荣 1王晓东 2王浩冲 3史改革3
作者信息
- 1. 陕西省药品和疫苗检查中心,西安 723099
- 2. 陕西省医疗器械质量检验院,西安 712046
- 3. 西安交通大学生命科学与技术学院,西安 710049
- 折叠
摘要
脑电采集芯片或脑电采集器等脑机接口基础硬件正在逐渐落地,需要使用模拟信号发生器对其性能进行测试验证.针对传统信号发生器系统复杂、体积庞大、精度低等问题,提出了高精度微伏级脑电信号模拟发生系统.经试验验证,该系统可以生成微伏级的正弦波、方波、三角波和模拟脑电,电压生成误差在±1 μV以内,满足脑电采集芯片或脑电采集器的性能检测需求,为脑机接口技术的研究提供了参考.
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.
关键词
脑机接口测试/模拟信号发生器/脑电信号/系统设计Key words
brain-computer interface testing/analog signal generator/EEG signals/system design引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据