The signal acquisition system mainly deal with the acquisition of EEG, the conditioning, amplifying and A/D converting which are imposed on the signals, only after this can the signals enter the computer.

• 该系统主要是完成了对脑电信号的采集、前置放大、中间级放大、调理和A/D(模拟信号-数字信号)转换,使之进入计算机。