hadamard

说明：  自相关的matlab程序。可以用于信号的周期性监测。(Since the procedures related to matlab. The cyclical nature of the signal can be used for monitoring.)

系统辨识的一个matlab仿真实验室报告，有一定的学习价值和授课价值(System identification matlab simulation laboratory report, the value of learning and teaching value)

last time when i came here to find some clock references. but most of them can not works well. so this files works well on FPGA board.(last time when i came here to find some clock references. but most of them can not works well. so this works well on files FPGA board.)

清华大学信号课程第二次实验，内容是基于傅立叶级数的信号分解以及双音频按键音合成(Tsinghua signal course the second experiment, the content is based on the Fourier series of two-tone signal decomposition and synthesis of key tone)

说明：  BP神经网络进行数据分类，是一种多层前馈神经网络，该网络的主要特点是信号前向传递，误差反向传播。运用梯度下降法，(BP neural network is a multi-layer feedforward neural network for data classification. Its main characteristics are forward signal transmission and back error propagation. Using gradient descent method and BP neural network to classify data is a multi-layer feedforward neural network. The main characteristics of this network are forward signal transmission and back error propagation. Using gradient descent method,)

computes the gravitational acceleration vector at a specified ％ ECF location using the JGM2 gravitational ellipsoid only. ％ Higher-order gravity terms (the "gravity anomaly") are ％ ingnored. Only the pure ellipsoid is used. (computes the gravitational acceleration vector at a specified ECF location using the JGM2 gravitational ellipsoid only. Higher-order gravity terms (the gravity anomaly ) are ingnored. Only the pure ellipsoid is used.)

对文本文件进行huffman编码，并显示huffman树(to the text document for Huffman coding, and that Huffman tree)

说明：  对一个50个结点（更多的节点的网络只需要修改模块中的标量维数就行）的复杂非线性耦合网络进行同步化仿真。首先生成K矩阵，然后运行simulink，即可得到50个洛仑兹混沌节点复杂网络的同步化曲线。(Of a 50-node (more network nodes only need to modify module scalar dimension on the line) the complexity of nonlinear coupling network synchronization simulation. First Generation K matrix, and then run the simulink, can be chaotic 50 Lorentz complex network node synchronization curve.)

基于谱熵法的语音信号端点检测方法的matlab程序，可以用于语音信号的处理(Endpoint detection method based on speech signal spectrum entropy method matlab program that can be used to handle voice signals)

函数功能是画出彩色图像的累加直方图，代码注释详细，值得一看(The function of the program is to show the color histogram.)