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应用matlab 调用epanet 软件进行管网水力学计算。(Application to call Matlab epanet software pipe network hydraulic calculation.)

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

这里面汇总了matlab局部放大的三种方法，可以对matlab中plot进行局部放大，带程序。(It mainly is concerned about the magnification of plot.The users can use it to magnify what they want.)

基于matlab的粒子群优化算法,可以解决多目标优化问题(PSO algorithm based on matlab,it can do the optimization problem )

C-C法求混沌系统的延迟时间，该程序是C-C法的函数文件，已测试，可运行多种数据，运行时间快(The C-C method seeks the delay time of the chaotic system. The program is a function file of C-C method. It has been tested and can run many kinds of data.)

维纳滤波Matlab代码 1 可以直接作为函数调用； 2 可以减少图像的块效应，以及平滑图像。(Wiener Filter Matlab code can be used directly as a function call 2 blocks can reduce the image effects, and smoother image.)

触发器，eda.在实际的数字系统中往往包含大量的存储单元，而且经常要求他们在同一时刻同步动作，为达到这个目的，在每个存储单元电路上引入一个时钟脉冲（CLK）作为控制信号，只有当CLK到来时电路才被“触发”而动作，并根据输入信号改变输出状态。把这种在时钟信号触发时才能动作的存储单元电路称为触发器(Triggers, eda. The actual digital systems often contain a large number of memory cells, and at the same time they often require synchronized action, to achieve this purpose, the introduction of a clock pulse (CLK) in each memory cell circuit as a control signal , the arrival of the circuit only when CLK was only trigger the operation and change the output state of the input signal. The memory cell circuit that can trigger actions when the clock signal is called a flip-flop)

这是有关综合实例——雷达工程数据的可视化与处理(This is the comprehensive example, the radar engineering data visualization and processing)

迭代法是基于逼近的思想，其步骤如下： 1． 求出图象的最大灰度值和最小灰度值，(Iterative method is based on the idea of approximation, the steps are as follows: 1. To derive the maximum gray value image and the minimum gray value,)

说明：  matlab经典的一些算法程序集锦，包括插值拟合，解方程，数值分析等等(matlab algorithm program highlights some of the classic, including the interpolation fitting, solving equations, numerical analysis, etc.)