说明：  包含了阵列信号处理的常见算法，包含特征值与特征向量的提取、训练样本以及最后的识别，FIR 底通和带通滤波器和IIR 底通和带通滤波器。
( Contains a common array signal processing algorithm, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.)