juanji

An ad-hoc network with a sender, a destination and a third station act- ing as a relay is analysed. The channels are modelled containing thermal noise, Rayleigh fading and path loss. Di® erent combining methods and di- versity protocols are compared. The amplify and forward protocol shows a better performance than the decode and forward protocol, unless an error correcting code is simulated. To combine the incoming signals the chan- nel quality should be estimated as well as possible. Information about the average quality shows nice bene¯ ts, and a rough approximation about the variation of the channel quality increases the performance even more. What- ever combination of diversity protocol and combining method is used second level diversity is observed. The relative distances between the relay and the stations has a large e® ect on the performance.

用于使用matlab语言进行的正交振幅调制及系统仿真．(For the use of language matlab QAM and system simulation.)

This code is about convolution in gabor domain.

应用于MATLAB中对图像的非线性变换，直方图均衡化线性，平滑滤波器(Images used in MATLAB, nonlinear transformation, histogram equalization, linear smoothing filter)

matlab常用函数命令，各个工具箱中所用到的都包括，还有simulator常用仿真命令，(some important function for matlab ,including all of the tool boxes and simulator)

Menu driven Choice 1: Accept info and store into appropriate objects. Choice 2: Depending upon the number entered by the user on console fetch the details of the individual employees.

这是非线性薛定谔方程的源代码m文件，可以帮助研究(This is the source code of Nonlinear Schrodinger equation)

BP神经网络函数拟合源程序,可实现BP网络的算法拟合(BP neural network fitting function source code, can achieve the fitting algorithm of BP network)

外国一个大学生做了一个精确定位系统，这个系统几乎可以跟踪镜头里的任何物体。只要你能看见它，并把它选中。有兴趣的同学可以下载我传上来的源文件...是用matlab写的...demo文件也在里面 (A foreign university students made a precise positioning system that can track almost any object lens. As long as you can see it, and to select it. Interested students can download the source files I pass up ... with matlab ... demo files are written inside)

用于产生Gabor信号的程序，直接调用即可(used to proceed Gabor signal, and it is very useful in signal processing)