Runge-Kutta-numerical-integration

线天线矩量法，解决天线电流分布问题 （matlab）(Wire antenna moment method to solve the issue of antenna current distribution (matlab))

基于元胞自动机模型对于交通事故下的高速公路交通流仿真，在不同大小车比例和交通流条件下，输出交通冲突数，评价道路是否安全。(Whether based on cellular automata model for highway traffic flow simulation in the accidents, the proportion of different sizes of vehicles and traffic flow conditions, the output number of traffic conflict,to evaluate of road safety.)

二维分布傅里叶算法求解非线性薛定谔方程，时间光孤子(Two-dimensional distribution of the Fourier algorithm for solving nonlinear Schrodinger equation)

在偏微分方程的数值求解中，有一类很重要的问题就是求解有奇异点的泊松方程，此程序是用C写的并行程序，能极大的提高泊松方程的求解(In the numerical solution of partial differential equations, there is a class of very important issues that have a singular point of solving the Poisson equation, this program is written in C parallel programs, can greatly improve the solution of the Poisson equation)

编写M文件，创建如下图形窗口，分别绘制如下图所示的曲线。 （1）曲线y=sin(t)sin(9t)，要求采用红色，点线。横坐标取值范围[0~ ]，标注x轴、y轴并加标题。 （2）一组余弦曲线，其振幅分别为0.4，0.6和0.8。横坐标取值范围[0~2 ]。添加图例与标题。进入图形编辑状态，调整图例的位置。 （3）分别绘制peaks函数的曲面图和网格线图。对曲面图做平滑处理，并添加标题与colorbar。 (Write M file, create the following graphics window, curves were plotted as shown below. (A) the curve y = sin (t) sin (9t), require the use of a red dotted line. The abscissa in the range [0 ~  ], labeled x-axis, y-axis and a title. (2) a set of a cosine curve, and the amplitude was 0.4, 0.6, 0.8. Abscissa value range [0 ~ 2  ]. Add a legend and title. Into the graphical editing mode, adjust the position of the legend. (3) were drawn surface chart peaks function and grid line graph. Surface charts do for smoothing and add titles and colorbar.)

扩频系统，首先随机产生01序列，然后通过扩频，脉冲成型，BPSK调制发送，接收端接收进行解扩解调(The wide frequency system, first stochastically has 01 sequences, then through the wide frequency, the pulse formation, the BPSK modulation transmission, the receiving end receive carries on the despread demodulation. )

deboor算法，B样条，程序简单易懂，很实用(deboor algorithm, B-spline)

说明：  这是一个MATLAB torr3D三维重建工具箱，供图像处理的朋友学习。(This is a MATLAB torr3D reconstruction toolbox for image processing of the friends to learn.)

本程序可以实现具有较好相关性的ZC序列，其时频两域相关性很强(The program can achieve better correlation with the ZC sequence, time and frequency domain strong correlation)

利用MATLAB提取相关系数，按照matlab的滤波思路进行编写的IIR滤波程序，已经证明好用！(MATLAB is utilized to extract the correlation coefficient, according to the writing of IIR filter MATLAB filtering ideas for program, it has been proved useful!)