预处理器是一组基于matlab的函数和脚本。它被设计为从XLTek导出的输入EEG文本文件，并在MATLAB中执行各种数据调节步骤，以方便信号处理和数据分析。(This manual gives step by step instructions on how to use some of the features of the XLTek Preprocessor (XTP). The preprocessor is a set of MATLAB-based functions and sc