cdma_codec

说明：  此程序用来实现双相介质中波场的有限差分方法的数值模拟。(This process used to achieve the two-phase media finite difference method for wave field numerical simulation. )

关于精致Lee滤波的原创matlab代码，只限仿真使用。代码详细，有说明，有图有结果。(About matlab code of the refined Lee filtering, Only simulation to use.)

modulation en phase deux niveaux BPSK

this program finds the number of zero crossings in a given signal.

复杂网络度分布计算， 求网络图中各节点的度及度的分布曲线(The complexity of the distributed computing network)

matlab频谱三维图，时间频率幅值。频谱分析三维图，计算机绘制的三维频谱以频率为横坐标，以振幅为纵坐标，以时间为斜轴，在视觉上是一种立体频谱。(Matlab three dimensional spectrum diagram, time frequency amplitude. Spectrum analysis of three-dimensional map, 3D computer generated by frequency spectrum as the abscissa, the amplitude of the vertical axis, in time for the inclined shaft, the vision is a kind of three dimensional spectrum.)

系统辨识，最小二乘法matlab仿真程序，非常实用(System identification, least squares matlab simulation program, very useful)

This demonstration shows that reordering the rows and columns of a sparse matrix S can affect the time and storage required for a matrix operation such as factoring S into its Cholesky decomposition

多井下的RAKE接收机的接受性能matlab仿真源程序，可以直接运行。(RAKE receiver more than the acceptance of underground performance simulation matlab source, can be directly run.)

matlab通信仿真实例详解，里面有很多通信仿真的例子，对于利用matlab进行通信仿真的学习具有很大的帮助。(matlab communication simulation example explanation, there are many examples of communication simulation, to communicate about the use of matlab simulation study of great help.)