LFSR1

Simulation for mimo system

DS-CDMA通信系统的MATLAB源程序(DS-CDMA communication system MATLAB)

人脸识别的一个图片库40人每个10张图像(Recognition of a picture gallery of 40 images each of 10)

神经网络修改BP辨识算法，用于辨识复杂的非线性系统，相对传统BP算法，具有计算快等优点(Modify BP neural network recognition algorithm for identification of complex nonlinear system, compared to the traditional BP algorithm has the advantages of quick calculation)

根据股票数据，输出股票技术分析图，可以根据需要调整分析周期(According to stock data, the output of stock technical analysis chart can be adjusted according to analysis of the cycle)

了解数组的概念，掌握数组的声明、初始化方式,熟练掌握foreach语句的用法，理解params关键字的使用,掌握数组转换方法的使用,理解索引器的概念，掌握在整数索引和在字符串上索引的应用. (Understand the concept of the array, the array of master declaration, initialization methods, proficiency foreach statement usage, understanding the use of params keyword, master the use of an array of conversion methods, understand the concept of indexers, master integer index and index in the string applications.)

These are MATLAB codes for implementing Chebyshev-Type 1 Bandpass and Bandstop filters.

lindo_lingo_matlab教程，请大家一起交流(lindo_lingo_matlab tutorial, please exchange with U.S.)

说明：  matlab code for finger print detection

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)