实现了对10个数字音的识别程序含噪脉冲信号进行相关检测,粒子图像分割及匹配均为自行编制的子例程，构成不同频率的调制信号，对于初学matlab的同学会有帮助，LDPC码的完整的编译码。- Realization of 10 digital audio recognition program Noisy pulse correlation detection signal, Particle image segmentation and matching subroutines themselves are prepared, Constituting the modulated signals of different frequencies, Matlab for beginner students will help, Complete codec LDPC code.