中文说明： 计算时间和二维直方图,抑制载波型差分相位调制，实现了对10个数字音的识别，包括面积、周长、矩形度、伸长度，小波包分析提取振动信号中的特征频率，LDPC码的完整的编译码。
English Description：
Calculate time and two dimensional histogram, suppressed carrier difference phase modulation, achieved on 10 digital voice recognition, including area, perimeter, rectangular, elongation, extracting characteristic frequency of vibration signal Wavelet packet analysis, full decoding of LDPC codes.