基于ADS1298与FPGA的高性能脑电信号采集系统

High-performance electroencephalograph acquisition system based on ADS1298 and FPGA

高性能的便携式脑电信号的采集设备对临床医学和认知科学研究领域具有重要意义,设计了基于ADS1298和FPGA的高性能脑电信号采集系统。给出了脑电信号采集系统的总体设计,重点阐述了ADS1298的特点和工作原理,在此基础上讨论了系统的外围电路以及FPGA接口电路设计,最后给出内部信号处理控制模块设计。设计的脑电信号采集系统具有低功耗、高精度和小型化的特点,具有很好的应用前景。

High-performance portable electroencephalograph （EEG） acquisition equipment has great significance in the fields of the clinical medicine and cognitive science, so a high-performance EEG acquisition system based on ADS1298 and FP- GA is designed in this paper. The overall design of the EEG acquisition system is given. The features and working principle of ADS1298 is elaborated emphatically. On this basis, the peripheral circuit design and FPGA-based interface circuit design are discussed. The designs of internal signal processing control module is offered. The EEG acquisition system designed in this paper has the advantages of low power, high accuracy and miniaturization. It has a favorable market prospect.