计算晶粒的生长，入门级别程序,语音信号的采集与处理，数字信号处理课设，主要为数据分析和统计。- Calculation of growth, entry-level program grains Acquisition and Processing of the speech signal, digital signal processing class-based, Mainly for data analysis and statistics.

主要为数据分析和统计，用于建立主成分分析模型，实现串口的数据采集。- Mainly for data analysis and statistics, Principal component analysis model for establishing, Achieve serial data acquisition.