Simple_EPS

一维fdtd程序，自由空间，调制高斯脉冲波源(1 dimensional fdtd program)

说明：  蚁群算法程序演示，vc++的源程序，vb开发的演示课件(Ant colony algorithm demo program, vc++ the source code, vb demonstration courseware development)

In a multiple transmit antenna, single antenna per receiver downlink channel with limited channel state feedback, we consider the following question: given a constraint on the total system-wide feedback load, is it referable to get low-rate/coarse channel feedback from a large number of receivers or high-rate/high-quality feedback from a smaller number of receivers? Acquiring feedback from many receivers allows multi-user diversity to be exploited, while high-rate feedback allows for very precise selection of beamforming directions. We show that there is a strong preference for obtaining high-quality feedback, and that obtaining near-perfect channel information from as many receivers as possible provides a significantly larger sum rate than collecting a few feedback bits from a large number of users.

绘制庞加莱截面图的程序。先通过solveLor.m来求出一系列点，然后代入Poincare_section 程序绘制庞加莱截面。 通过观察Poincare截面上截点的情况可以判断 是否发生混沌：当Poincare截面上有且只有一个不动点或少数离散点时，运动是周期的；当Poincare截面上是一封闭曲线时，运动是准周期的 当Poincare截面上是一些成片的具有分形结构的密集点时，运动便是混沌。 (Poincare section drawing program. First obtained by solveLor.m to a series of points, and then drawn into the program Poincare Poincare section. By observing the situation on the Poincare section cut points can determine whether chaos occurs: When there is only one fixed point or a few discrete points on the Poincare section, the motion is periodic When is a closed curve on the Poincare section, the motion is quasi- When is the point of having a dense fractal structure on some stretches of the Poincare section, the motion is chaotic period.)

Question 1.4 Sullivan

认知无线电 通信原理 产生qpsk程序 并画出图像(qpsk program)

利用HARRIS矩阵实现角点提取，适用于多种图像(HARRIS matrix realization of the use of corner extraction, applied to a variety of image)

matlab 中用来将rgb数据转换成灰度图像的源代码(matlab used to the rgb data into gray-scale image of the source code for)

On MATLAB in communication system application

PD controller for nonlinear model of robot