sys1

fit_maxwell_pdf - Non Linear Least Squares fit of the maxwellian distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples. fits data to the probability of the form: p(r) = sqrt(2/pi)*(a^(-3/2))*(r^2)*exp(-(r^2)/(2*a)) with parameter: a format: result = fit_maxwell_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields a - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

柔性直流输电模型，基于matlab的demo的，可以再matlab的help上了解模型详情(Flexible HVDC model, based on the matlab demo.you can get help the model matlab help )

matlab m file program

bulit base on ISCAS paper example to reference to paper, we can use the tool to repeat the action of the author(it s an assistance toolbox of the paper to understand what the author say)

MLP network with fig

说明：  Leslie模型实例：基于Leslie矩阵的算法，同时将人口按10年一组分成m个年龄段，并根据一些影响人口数量和结构的重要因素（建立模型。再根据我国近十年的二孩出生率的实际情况并结合少数民族不受影响的因素，通过Matlab画出拟合曲线对2017-2030年我国每年人口总数做出预测。此后，根据近十年0-14岁、15-64 岁、65岁及以上三个年龄段的人数，计算出人口抚养比，用Matlab预测至2030年的人口结构。为了使预测更加精确，我们还将夫妇的生育意愿考虑到模型当中。(Based on the Leslie matrix algorithm, the population is divided into m age groups according to a group of 10 years, and according to some important factors that affect population size and structure Modeling. Then according to the actual situation of the birth rate of second-born children in China in the past ten years and combining the factors that are not affected by ethnic minorities, drawing a fitting curve through Matlab will make a prediction for the total population of China in 2017-2030. After that, based on the number of people aged 0-14, 15-64, and 65 years of age in the last ten years, calculate the dependency ratio of the population and use Matlab to predict the population structure by 2030. In order to make the prediction more accurate, we also consider the couple's fertility intention in the model.)

MATLAB Finit Element methode fdtd

compresssion based calic decomposition

箱体右侧一块挡板以15m/s速度下滑，求解箱体内流函数‐涡量方程。取Δx=Δy=0.01m,Δt=0.001sec。 自己编写的Matlab代码。(Box the right side of a shutter speed of 15m/s decline solving the the cabinets stream function- vorticity equation. Taken Δx = Δy in = 0.01M, and Δt = of 0.001.)

系统辨识与自适应控制--白噪声及有色噪声序列的产生(White noise and colored noise sequence generation)