chengxu

本代码实现了matlab调用VC的动态链接库与cypress的68013芯片通过usb进行数据交换(Matlab code implements the dynamic link library called VC and cypress in the 68013 chip data exchange via usb)

自己创建simulink库的时候所需要的文件，值得参考(Simulink library to create their own when the required documentation, it is also useful)

说明：  MATLAB小波分析的学习资料 ppt 有需要的朋友可以看看(MATLAB Wavelet Analysis of the learning materials ppt can see a friend in need)

This is an image segmentation file.

基于MATPOWER修改而成的潮流计算软件，可以采用直流潮流法、牛顿拉夫逊法、PQ分解法与高斯－塞代尔法解算IEEE9-300节点的潮流。 (MATPOWER modifications made based on the flow calculation software, DC power flow method can be used Newton Raphson method, PQ decomposition method and the Gauss- Cypriot dayr Act solver IEEE9-300 nodes trend.)

这是大学数字信号处理的时域采样定理验证实验程序(This is the University of digital signal processing time-domain sampling theorem verification test procedures)

稀疏信号分解利用匹配追踪算法，主程序+调用函数(Sparse signal decomposition, the main program calls the function+)

说明：  matlab用的惯性导航工具箱，用来实现算法仿真。(Matlab toolbox with inertial navigation, used to realize the algorithm simulation.)

cortab function for wavelet analysis

矿用电机车电控系统有两种,一种是有触点的电控系统,另一种是脉冲调速系统。以晶闸管为主要元件的脉冲调速系统在矿用电机车中仍大量使用。晶闸管属于半控型器件,其控制极只能控制开通而不能控制其关断,在低速运行时,晶闸管一经导通后,如果不能根据需要关断,则电动机承受全部电压而失去控制,电机车全速运行。本文利用MATLAB软件对矿用电机车晶闸管脉冲调速系统的主电路进行建模并仿真,对影响安全运行的关键元器件进行了详细的分析。仿真结果表明晶闸管脉冲调速系统存在安全隐患。随着电子工业的飞速发展,一种新型的全控型电力器件(绝缘门极晶体管IGBT)开始在工业中得到广泛的应用,脉冲调速电控系统如采用全控型电力器件代替半控型元器件(晶闸管),将会大大简化控制电路。由于控制电路简单,便于实现数字化控制。本文对IGBT的调速原理进行分析,采用IGBT和集成PWM脉宽调制器SG3525为主要元件,设计出了双闭环可逆自动调速系统,并对该系统进行实验验证,实验结果表明该系统优于晶闸管直流调速系统,而且运行稳定,可以很方便实现可逆运行。(Mine electric locomotive electronic control system has two types of electronic control system with contacts, and the other is the pulse speed control system. The pulse thyristor as the main component in the mining electric locomotive speed control system is still widely used. A semi-controlled thyristor type devices, the control can only control a very open and can not control the turn-off, in the low speed, the thyristor turn-on once, if not turned off as needed, then the loss of the motor under full voltage control, motor vehicle running at full speed. In this paper, MATLAB software mining electric locomotive speed control system pulse thyristor main circuit modeling and simulation, the key components of the safe operation of a detailed analysis. Simulation results show that the thyristor pulse control system security weaknesses. With the rapid development of the electronics industry, a new full-controlled power devices (Insulated Gate Transistor IGBT) began to be widely used in indu)