rayleigh

说明：  2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

AF，DF，CC,三种基本协作方式仿真程序(Simulation of three basic collaborative approach)

function ber_ml=Alamoudi(snr,soglia) This function simulates a Alamouti scheme. The input variables are soglia and snr. Soglia: is the number of errors after which the iterations stop. For better results, put high value of soglia, but the simulation is longer. snr: the signal to noise ratio (if u don t know what is a signal to noise ratio, well, come back to your high school!). Note: U should use this function with a main function in wich u chose different value of snr. That s because this function work just with one value of snr. If u have problem with this code, write me at m.allegritti@email.it. Take care! Max

用于描述通讯中常用的RS编码原理，以及MATLBA仿真实例(Used to describe communication RS coding theory, and simulation MATLBA instance)

位同步源代码，是关于MATLAB的，很好的，并且具体有调制解调的功能！(Bit synchronization source code on MATLAB, very good, and the specific modulation and demodulation functions)

说明：  通过MATLAB实现基于zc706和ad9361的数据收发例程(Realization of data sending and receiving routine based on zc706 and ad9361 by MATLAB)

使用QT编写的一个串口升级工具，升级协议采用TI的LM3S系列的bootloader串口协议。(A serial upgrade tool, written using QT upgrade protocol using of TI' s LM3S series the bootloader serial port protocol.)

访问市场上流行的德卡公司的接触非接触读卡器程序(Access to the market the company' s exposure to the popular de non-contact reader program)

在ofdm调制中运用压缩感知中OMP算法进行信道估计并与LS算法进行比较(Ofdm modulation using compressed sensing OMP algorithm for channel estimation and comparison with the LS algorithm)

说明：  实现雷达的信息接收的插件脚本，剩下的就是凑字数了，第一次上传东西，不知道有没有人看！(Achieve radar information receiving plug-in script, the rest is the word count, the first time to upload things, do not know if there is anyone to see!)