emd

System will automatically delete the directory of debug and release, so please do not put files on these two directory.

blast检测方案仿真程序.rar (blast检测方案matlab仿真程序)(blast simulation program testing program. rar (blast detection program matlab simulation program))

乒乓球弹跳模型主程序，能够在仿真过程中动态显示球的坠落和反弹过程，在仿真过程结束后输出小球位移和速度的变化曲线！(Table bouncing model main program that can display dynamic simulation of the falling ball and the rebound process, after the end of the simulation output and speed of the ball displacement curve!)

根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment. )

悬置刚度、阻尼测试数据处理 (Function to process data from measurement of stiffness and damping)

该程序是music谐波恢复算法仿真，由仿真结果证明music算法可以准确进行谐波估计。(The program is music harmonic retrieval algorithm simulation, the simulation results show that the harmonic music algorithm can accurately estimate.)

该程序对矩阵的求逆运算进行了matlab编程，简便，通用，精度高(The application of matrix inversion has carried on the matlab programming, simple, universal, high precision)

使用时域有限差分法编写的计算散射截面的简单程序(Scattering cross section is calculated using a simple program written in finite difference time domain method)

Matlab实现的一个简单的RADAR预警雷达模拟 (Matlab realize a simple early warning radar RADAR simulation)

数学建模清华数模讲义\model10b (Mathematical modeling Qinghua digital-analog handouts model10b)