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

作　　者：胡碧荣 王晓东 王浩冲 史改革 HU Birong;WANG Xiaodong;WANG Haochong;SHI Gaige(Shaanxi Drug and Vaccine Inspection Center,Xi an 723099,China;Shaanxi Medical Device Quality Inspection Institute,Xi an 712046,China;School of Life Science and Technology,Xi an Jiaotong University,Xi an 710049,China)

机构地区：[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

出　　处：《信息通信技术与政策》2024年第5期34-40,共7页Information and Communications Technology and Policy

基　　金：陕西省秦创原“科学家+工程师”队伍建设项目(No.2022KXJ-129);西安市科技计划项目(No.23ZDCYJSGG0005-2023)。

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±1μV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。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±1μV.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 

分 类 号：TN98[电子电信—信息与通信工程]