Xiao

经过测试，发现这个代码结果很好，而且可以 和别的程序结合，恩不错的(tested and found very good results this code, but can and other procedures, TU good)

matlab design of butterworth high pass filetr

通过MATLAB实现PCM的低速语音编码。(Through the realization of MATLAB PCM low bit rate speech coding.)

改进人工势场避障程序，用于移动机器人轨迹规划(Improved artificial potential field obstacle avoidance program for mobile robot path planning)

一个语音的倒频谱图的分析，有源代码，有图，加一个DCT压缩代码(A voice analysis inverted spectrum, source code, a map, plus a DCT compression code)

去噪为仿真信号建立； 去噪1为eemd去噪； 去噪2为形态滤波器； 去噪3为小波去噪，全局阈值，给定阈值（软阈值，硬阈值）； 去噪4为实际去噪(2 for morphological filter denoising Denoising 3 as the wavelet denoising, global threshold, the given threshold (soft threshold and hard threshold) 4 for practical denoising denoising)

地震学绘制震源机制小程序,只要输入震源机制参数就能方便地用MATLAB绘制震源机制球(Program of focal mechanism )

可以直接画出lorenz系统在各种参数下的3D演化吸引子和分叉图(Can directly draw the evolution of the the lorenz system in the various parameters of the 3D attractor bifurcation diagram)

MATLAB code for signal filtering with fixed point coefficients

SVM方法的基本思想是：定义最优线性超平面，并把寻找最优线性超平面的算法归结为求解一个凸规划问题。进而基于Mercer核展开定理，通过非线性映射φ，把样本空间映射到一个高维乃至于无穷维的特征空间（Hilbert空间），使在特征空间中可以应用线性学习机的方法解决样本空间中的高度非线性分类和回归等问题。svm 程序，即支持向量机的代码。(The basic idea of SVM method are: the definition of the optimal linear hyperplane, and the search algorithm for optimal linear hyperplane by solving a convex programming problem. Then based on Mercer nuclear expansion theorem, through a nonlinear mapping φ, the sample space is mapped to a high-dimensional and even infinite dimensional feature space (Hilbert space), so that in the feature space can be applied to solve the linear learning machine method, the sample space The highly nonlinear classification and regression problems. svm procedures that support vector machine code.)