Lab4

this about the dynamic voltage restorer

说明：  用 CC法计算延迟时间和潜入位数的matlab程序(CC method with delay time and the median into the matlab program)

针对感应电机扩展卡尔曼滤波器转速估计中难以取得卡尔曼滤波器系统噪声矩阵和测量噪声矩阵最优值的问题，提出了一种基于改进粒子群算法优化的扩展卡尔曼滤波器转速估计方法。算法通过融合遗传算法和粒子群算法的优点，采用可调整的算法模型对粒子群算法进行改进，将改进的粒子群算法对扩展卡尔曼滤波器中的系统噪声矩阵和测量噪声矩阵进行优化处理，将优化后的卡尔曼滤波器应用于感应电机转速估计。( Extended Kalman Filter for induction motor speed estimation problem is difficult to obtain a Kalman filter system noise matrix and the measurement noise matrix optimal value proposed speed estimation method based on improved particle swarm optimization of the extended Kalman filter. By virtue of the genetic algorithm and particle swarm optimization algorithm fusion algorithm using the adjustable model PSO improvements that will improve the PSO extended Kalman filter system noise matrix and the measurement noise matrix optimization process, the optimized Kalman filter is applied to the induction motor speed estimate.)

说明：  贝叶斯方法将所有参数看作随机变量，将未知参数的先验信息与观测数据综合，再由贝叶斯定理求算出后验概率分布，进而根据后验分布去推断未知参数。(Bayesian method regards all parameters as random variables, synthesizes the prior information of unknown parameters with observation data, calculates the posterior probability distribution by Bayesian theorem, and infers unknown parameters according to the posterior distribution.)

卡尔曼滤波器的matlab文件程序，经测试可用(Kalman filter matlab file procedures used by the test)

matlab语言编写的算法设计程序，解决计算机映射问题(matlab language algorithm design process, problem solving computer mapping)

设置参数，创建输入信号,计算和显示比特误差率,绘制图形.(Set parameters, create the input signal, calculate and display bit error rate, draw graphics.)

该压缩包实现二维的DCT变换和逆DCT变换，可以对图像做DCT变换和逆DCT变换，实现非常简洁，速度很快。(the compressed 2D DCT and the inverse DCT. Images can be done DCT and inverse DCT achieve a very simple, very fast.)

利用matlab函数编写GUI界面设计，对于其步骤，以及相应的函数做出具体说明。(Using matlab function to write GUI interface design, for its steps, and the corresponding function to make specific instructions.)

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