Bahram

the function to create the mesh, fro Openfem

这是一本很好的学习信号处理的书籍,拿出来和大家分享(This is a good learning signal processing books, and share out)

实现了数字信号处理在双音多频拨号系统中的应用，并用MATLAB实现。(Realization of the digital signal processing in a dual tone multi-frequency dialing system, and use MATLAB implementation.)

说明：  calculates Fourrier transform.

验证雷达回波杂波检测与剔除，通过一次对消和二次对消进行检验(Detection of clutter in radar echo and suppression of clutter)

工程经济串讲，关于工程经济自考的资料，对正在自考的人也许有用，所以上传上来啦！(Engineering Economic Chuanjiang, with regard to engineering economy Zikao information on the person being Zikao may be useful, so upload the Laila!)

Create some artificial two-term mixture data

说明：  粒子滤波通过随机采样生成粒子，计算随机变量的后验分布(Particle filter generates particles by random sampling and calculates the posterior distribution of random variables.)

matlab中几个非常实用的画图程序，分别用来画箭头，方形，球体，多面体，坐标系，非常实用。(matlab drawing on some very practical procedures were used to draw the arrow, square, sphere, polyhedron, coordinate system, very useful.)

Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof - the number of system dofs after constraints applied sid - ID matrix of system dof formatted as nnode*ndof discons - matrix record the node of displacement constrain ndof - number of dofs per node nnode - number of nodes in system(Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof- the number of system dofs after constraints applied sid- ID matrix of system dof formatted as nnode*ndof discons- matrix record the node of displacement constrain ndof- number of dofs per node nnode- number of nodes in system)