matlab02w

说明：  黄金分割法求极小值 功能：用黄金分割法求f(x)在区间[a,b]上的近似极小值。当且仅当f(x)在[a,b]上为单峰时次方法适用 (Golden section method for the minimum functions: golden section method used for f (x) in the interval [a, b] on the approximate minimum. If and only if f (x) in [a, b] for the single-peak method can be applied at times)

以中等纯度的精馏塔为研究对象，考虑到不等分子溢流的影响和非理想的汽液平衡，可以得到塔顶产品轻组分含量Y与回流量L之间的传递函数为： 其中由于现场环境干扰，输出带有测量噪声是（0，1）的正态分布序列，它的方差为ɑ=0.5。由于输出中带有很大的噪声信号，故将数字滤波技术中常见的低通滤波器由于偏差控制，滤掉其中的噪声信号，然后在对其进行PID计算，得到实际的控制量。在该方法在噪声较强的环境下，可以得到较好的控制效果。 控制要求： 1、 采用带低通滤波器的增量式PID将塔顶轻组分含量控制在0.99 2、 用ISTE法整定PID参数 3、 在控制过程中，到150周期加入幅度为-20 的阶跃干扰，在第300周期干扰消失。分析PID参数的抗干扰性。 (Medium-purity distillation column, taking into account ranging from molecular overflow and non-ideal vapor-liquid equilibrium, the transfer function between the light component content of the top product Y and the back flow L can be obtained as: Because the field of environmental interference, output with the measurement noise is a normal distribution (0,1) sequence, its variance ɑ = 0.5. As with a lot of noise in the output signal, it will be common in low-pass filter in the digital filtering techniques due to the bias control, filter out the noise signal, then its PID, the actual amount of control. In the strong noise environment, you can get better control effect. Control requirements: 1, using the incremental PID with a low-pass filter to the top of the tower content of light components in the 0.99 2, the method of ISTE tuning PID parameters 3, in the control process, to 150 cycles join the range of-20 step disturbance, disappearance of interference in the first 300 c)

PID 整定 开关电源 matlab 仿真(matlab power moduel)

永磁同步电机的直接转矩控制，包含磁链观测，电压电流转速转矩等。很经典，很全面，功能完整.附带一个离散直接转矩控制下的模型(Direct torque control of permanent magnet synchronous motor, comprising flux observer, voltage and current speed torque and the like. Very classic, very comprehensive, full-featured. Comes with a discrete model of direct torque control)

对于给定的数个离散数据点，使用3次NURBS（非均匀有理B样条曲线）进行插值拟合。该算法程序能够反算出NURBS曲线控制点并绘制经过给定离散点的插值曲线。(For a given number of discrete data points, the 3 NURBS (nonuniform rational B spline curve) is used for interpolation fitting. The algorithm can calculate the control point of NURBS curve and draw the interpolation curve of the given discrete point.)

Resolution of the Cronig-Penney s predator and victim problem wrote in Matlab v6.5.

本例程包含位置式PID算法、积分分离式PID算法等一般PID算法(This routine contains the positional PID algorithm, points separate the general PID algorithm PID algorithm)

Fuzzy logic inference system

背景检测,使方法更加的优化了，更容易接受学习，使读者容易接受(background detection)

说明：  <<小波分析理论与matlab r2007实现>>教材中的源代码(&lt &lt Wavelet analysis theory and the realization of matlab r2007&gt &gt materials in the source code)