pca-sift

PV array with inverter PWM

STM32制作的MP3的全部资料，车牌识别定位程序的部分功能，小波包分析提取振动信号中的特征频率。( STM32 all the information produced by the MP3, Part of the license plate recognition locator feature, Wavelet packet analysis to extract vibration signal characteristic frequency.)

利用matlab串口工具箱，显示飞思卡尔智能车摄像头数据，生成图像显示。程序为开发过程中的命令行下的测试样例，仅供入门。可在此框架下添加自己的功能(Use of the a matlab serial Toolbox Freescale smart car camera data, generate image display. The program for the test sample, under the command line in the development process for entry only. Can add their own functions under this framework)

MATLAB in Maxwell speed distribution law teaching application

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.)

应用内点法中原-对偶路径跟踪法，求解线性规划问题，也可以用于求解最优潮流问题，不过KKT方程较复杂。(using the original- dual path following method is used to solve linear programming problems)

说明：  用递推的极大似然法对系统辨识，对具有随机噪声的二阶系统的模型辨识(Using the recursive maximum likelihood method of system identification, random noise with the second-order system model identification)

这是拿matlab编写的jpeg编码的程序，内含报告，对于北邮选多媒体选修的很有用(This is written in matlab to take jpeg encoding process, containing reports, selected for Beijing University of Posts and Telecommunications of useful multimedia elective)

这些代码是TD-SCDMA的程序，可以帮助学者更好地理解和掌握TD-SCDMA(The code is the program TD-SCDMA can help scholars better understand and master the TD-SCDMA)

全局经验模态分解程序 对经验模态分解进行了殆尽 供大家使用 (Ensemble Empirical Mode Decomposition)