QuasiZ1

Kirsch filter for image processing

本程序为《结构分析的有限元法与Matlab程序设计》第三章的第一个算例，采用平面梁单元计算平面刚架的变形和内力，已经过修改。(This program is "structural analysis of the finite element method and Matlab Programming" chapter of the first example, the use of plane beam element of plane frame deformation and internal forces, which have been modified.)

说明：  边界元方法, 声学计算，声场仿真，声压值误差计算(BEM acoustics)

this code realize the two dimention esprit algorithm

nsga-2算法实现多目标优化,改进了nsga算法。是一种先进的遗传算法(nsga-2 multi-objective optimization algorithm, improved nsga algorithm. Is an advanced genetic algorithm)

先归一化输入输出参数，用KMens优化RBF神经网络中心值，然后计算隐节点数据中心间的距离（矩阵），得到各隐节点的扩展常数（宽度），接着用最小二乘法得到各隐节点的输出权值，对数据进行反归一化，并绘图得到神经网络输出与测试集图，同时进行性能评价(First, the input and output parameters are normalized, the central value of the RBF neural network is optimized by KMens, then the distance (matrix) between the data centers of the hidden nodes is calculated, and the extended constant (width) of the hidden nodes is obtained. Then the output weights of the hidden nodes are obtained by the least square method, and the data are back normalized, and the neural network is drawn. Output and test set diagrams, and performance evaluation)

amer s noise level estimation implementation on MATLAB

说明：  不动点迭代方法也是一常用的计算非线性方程组的解法。(Fixed point iteration method is also a common calculation method of nonlinear equations.)

code to use neural network toolbox in matlab

基于无差拍的有源电力滤波器（APF）的仿真设计，包括（谐波检测， 电流跟踪环节） Z域(spwm调制)(Deadbeat based Active Power Filter (APF) simulation design, including (harmonic detection, current tracking links) Z domain (spwm modulation))