好用的isodata 迭代自组织的数据分析开源程序

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)

spwm逆变器的电容电流和负载电压闭环控制 花了些时间调好的 给需要的人(spwm inverter capacitor current and load voltage closed-loop control took some time to those who need a good tune)

atmel ATMEGA16 Microcontroller

有序列表的插入，每次添加新数据时，保证整个列表的有序性(Into an ordered list, every time you add new data, to ensure the orderly nature of the entire list)

matlab中的彩色图转换成灰度图后的最新集中算法的运用的边缘检测(The color chart matlab edge detection)

对进行过高斯噪声处理的图像进行均值滤波的MATLAB代码（原创）。(The Mean Filtering algorithm for a figure processed by Gauss noise.)

非线性方程的Matlab程序，主要用于代入非线性方程的数学问题(Matlab program of nonlinear equations, mainly for generation of nonlinear equations into mathematical problems)

说明：  用麦克风树，采用lms时延算法对声源进行定位(Using microphone tree and LMS delay algorithm to locate the sound source)

均匀园阵doa估计music算法源程序，实现对均匀园阵doa估计(Park doa uniform array algorithm estimates source music, to achieve uniform estimates doa Park array)

一组取值为+/-1的随机序列，每两个数据之间插入3个0，然后将序列通过一个设计好的根升余弦滤波器，并用周期图法和Welch法分别绘制信号的功率谱。再次通过根升余弦滤波器后用stem函数绘图。(A set of values ​ ​ is+ /-1 random sequence inserted between every two data 3 0, then the sequence through a root raised cosine filter designed, periodogram and Welch method to draw the signal powerspectrum. Stem function by root raised cosine filter with drawing again.)