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in this code i have implemented the algorithm to find the minimum sampling frequency bandpasss sampling used in Software defined radio

本代码可以实现CIC的抽取滤波功能，性能很好(This code implements the CIC decimation function, performance is very good)

cuantizacion uniforme de un archivo de audio .wav

运用仿真软件对滑动轴承油膜压力分布进行模拟分析和设计计算。(Based on the MATLAB technical sliding bearing oil film pressure distribution simulation analysis, and design calculations.)

研究了汽车制动过程中车速、轮速等的变化过程和影响因素；以化整为零的思想，研究得到制动过程中各物理量间的微分方程关系；进而建立在ABS下的数学模型；继而通过使用simulink建立仿真模型；采取逻辑门限的控制方法，综合仿真的整个动态变化过程；得到车速、轮速、滑移率、路面附着系数和制动距离随时间的变化曲线；最后利用图像分析的方法对各物理量进行分析、比较，对比有无ABS系统下制动距离的变化，得出使用ABS控制策略能显著缩短制动距离，提高制动安全性。数据分析和处理主要应用MATLAB软件。(The braking dynamics model of quarter vehicle ABS is established. It simulates the dynamic behavior of a vehicle under hard braking conditions. We researched the change of the vehicle speed and wheel speed during the vehicle braking. According to Newton s first and second law, then dfferential equations are obtained, so we get the Mathematical model. Next the response of the system is simulated by using Simulink in MATLAB . Based on the logic threshold control, we get the curve that Speed, wheel speed, slip ratio and road adhesion coefficient and brake distance changes over time. Contrasting with ABS or without ABS , using the ABS control strategy can significantly shorten the braking distance. Data analysis and processing mainly used MATLAB software.)

说明：  22自由度齿轮动力学计算，利用ode45(22 DOF Gear Dynamics Calculation, Using ode45)

GaborFilter的应用,挺好的M文件(GaborFilter)

Nonlinear Schrodinger Equation Explicit

说明：  cart算法建立决策树，并引入随机森林进行数据分类和预测(Cart algorithm establishes decision tree, and introduces random forest for data classification and prediction)

vrml与matlab讲解，让需要使用matlab虚拟现实工具箱的人找到自己需要的东西(vrml and matlab presentations, Virtual Reality Toolbox need to use matlab people find what they need)