中文说明： BP神经网络的整个训练过程,wolf 方法计算李雅普诺夫指数,在MATLAB中求图像纹理特征，验证可用，esprit算法对有干扰的信号频率进行估计,基于K均值的PSO聚类算法。
English Description：
BP neural network for the entire training process, Wolf method to calculate the Lyapunov exponent, image texture feature in MATLAB, validation is available, ESPRIT interference signal frequency estimation algorithm based on k-means clustering algorithm of PSO.