zxfj_frame

在3维里面重要的就是用MATLAB模拟空间多孔介质,得到实验基础(In 3-D inside the important thing is to use MATLAB simulation of porous media space, the basic experiment)

随机森林论文作者写的随机森林代码，采用matlab混合编程，需要安装Fortran compiler。。。(An interface to the random forest algorithm (version 3.3) written by Leo Breiman and Adele Cutler. This tool is for windows MATLAB R13 only)

完成M=4的DPSK通信系统的蒙特卡洛仿真，信号波形为snr2ps(snr_in_dB) 求出以dB为单位的给定信噪比的比特误码率和符号误码率.(Completion of M = 4 of the DPSK communication system Monte Carlo simulation, the signal waveform is snr2ps (snr_in_dB) calculated in units of dB signal to noise ratio for a given bit error rate and symbol error rate.)

这是一本信号与系统方向的圣经，我这里上传上来，希望对大家有用。(It is a bible in the aspect of signal and system. I upload it and want to share with people who need it and hope to help him/her.)

这是MATLAB的统计工具箱的应用，数模培训的必要内容(This is the MATLAB statistical toolbox of applications, several essential elements in training mode)

barker码产生的源程序，用matlab编写而成(err)

Hybrid kalman filter

c and matlab code work together. It implement the meanfilter function.(c code and matlab co-work. This function shows the meanfilter of image. You can try the code. There is no bug inside. )

(3,1,3)SOFT_HARD CODEING

1.纽马克算法，振动分析方法，计算多自由度系统振动响应，位移，速度，加速度 2.用于计算多自由度系统固有频率、固有振型、模态质量、模态刚度矩阵、正则模态向量、受迫响应振动 3.里兹法是一种缩减系统自由度的近似方法，用于多自由度系统的求解 4.庞加莱截面图法，用来对多变量自治系统的运动进行分析 5.频谱图法，用于系统的频域分析 6.线加速度法求解系统振动响应 7.雨流计数法，主要用于工程界, 特别在疲劳寿命计算中运用非常广泛，对载荷的时间历程通过计数的过程反映了材料的记忆特性(1. Newmark algorithm, vibration analysis method to calculate multiple degrees of freedom system vibration, displacement, velocity, acceleration 2. Multi-DOF system for calculating the natural frequencies, mode shapes, modal mass, modal stiffness matrix, normal modes state vector, forced vibration response 3. Ritz method is an approximate method to reduce the degrees of freedom for multi-degree of freedom systems solving 4. Poincare sectional view method for multivariable autonomous motion system are 5. the spectrum analysis method for frequency domain analysis system 6. the method for solving linear acceleration system vibration 7. the rain flow counting method, mainly used in engineering, especially used in the calculation of the fatigue life of a very wide range of load time through the course of the process of counting it reflects the memory characteristics of the material)