(9999999999)

说明：  关于高层建筑强风条件下风压系数计算，整体风荷载评估(High-rise building on the strong wind conditions, wind pressure coefficients, the overall assessment of wind loads)

在matlab中计算单位冲击脉冲响应曲线，冲击脉冲有5种，初始条件为0(in Matlab calculations unit impulse response curve, the impact of a pulse 5, the initial conditions 0)

this is a code to calculate the moment invariant of images. the values which come out are capable of removing rotational, scaling, transnational variation in image given as input.classification can be done with the help of it.

说明：  利用粒子群算法优化svm参数，得到高精度的svm模型(The parameters of SVM are optimized by particle swarm optimization (PSO), and the SVM model with high precision is obtained)

The following Matlab project contains the source code and Matlab examples used for two stage kalman fliter for system identification. Reference :Lei Y, Jiang Y Q. The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

3 Digit BCD to 7 segment indicator decoder

说明：  运动方程中的速度向量和加速度向量用位移的某种组合来表示，将微分方程组的求解问题转化为代数方程组的求解问题，并在时间区间内求得每个微小时间区间的递推公式，进而求得整个时程的反应。 中心差分法是一种显示的积分法，它基于用有限差分代替位移对时间的求导（即速度和加速度）。(Velocity vectors and acceleration vectors in motion equations are expressed by a combination of displacements. The problem of solving differential equations is transformed into the problem of solving algebraic equations. The recurrence formulas of each small time interval are obtained in the time interval, and then the response of the whole time interval is obtained. The central difference method is a display integration method, which is based on the finite difference method instead of the displacement derivative of time (i.e. velocity and acceleration).)

判断系统上升时间，峰值时间，超调量和调整时间。《自动控制》清华出版社的课后编程题目。(Determine the system rise time, peak time, overshoot and time to adjust. )

无线传感器网络协议仿真对比，死亡节点数随时间的变化对比，传输到基站的数据对比，网络能量消耗对比以及生命周期和稳定周期对比等(Wireless sensor network protocol simulation contrast, death nodes comparing the change with time, comparison of the data transmitted to the base station, network energy consumption and life cycle and the comparison and contrast stable period)

This is a simple script two illustrate the concepts of Probability density function(pdf) cumulative density function (cdf). Two help pdfs are also included to understand the pdf and cdf concepts.