wimax

基于matlab上路标识别，识别效果明显！(Matlab-based road marking other, identify obvious effect!)

安捷伦激光器和功率计扫描，matlab实现(laser auto sweep )

共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)

该程序可用于求解一维激波管的解析解。压缩包文件包含3个matlab程序，用户可以改变初始条件获得一维激波管某时刻下的物理状态。(this matlab codes is developed for solving shock tube problem with one dimenssion)

说明：  时间混叠信号matlab程序,是利用时间混叠信号进行循环谱估计的前提。该程序用于证明时间混叠后信号为周期信号。(Time Aliasing)

大家都为了学习，学习，在学习，努力，认真学习才是王道，希望有用( If you hadn’t told me about your birthday party tonight, If you hadn’t told me about your birthday party tonight。)

移动最小二乘法求曲面谷脊线，并立体呈现 参考文献：Sparse Low-degree Implicit Surfaces with Applications to High Quality Rendering, Feature Extraction, and Smoothing(To obtain the valley ridge moving least square method, and three-dimensional rendering)

二维经验模式分解（BEMD）程序，可用于图像分解 (Bidimensional Empirical Mode Decomposition)

本文件实现空间电压矢量在永磁同步电机直接转矩控制下的电机调速。经过调试可以正常运行。(SVPWM PMSM DTC)

决策树的matlab实现,包含训练和测试(Decision Tree matlab implementation)