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ADS1299测的原始脑电信号画图波形完全是杂波



ti的工程师你好,我用的是TI官网上购买的ADS1299EEG性能评估套件,现用电极测了两个通道的数据,但完全是杂波,如图所示,我的连接方式是参考电极连接左耳,驱动电极连接右耳(如图所示连接点)。两个通用电极测的前额信号(通道1和2),P级单端输入,SRB1映射到N级,寄存器配置也给出.请问下为什么全是杂波,而看不出一点脑电特征??