复化三点Gauss-lengend公式求pi，从先验概率中采样，计算权重，采用的是脉冲对消法，解耦，恢复原信号，采用波束成形技术的BER计算，实现了对10个数字音的识别，脉冲响应的相关分析算法并检验。-Complex of three-point Gauss-lengend the Formula pi, Sampling　a priori probability, calculate the weight, It uses a pulse of consumer law, Decoupling, restore the original signal, By applying the beam forming technology of BER To achieve the recognition of 10 digital sound, Related impulse response analysis algorithm and inspection.