115157719CS_DOA

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.)

利用ADM4017实现空调系统压力的采集（蒸发压力和冷凝压力) ,利用ADAM4018实现热电偶的温度采集。包含了曲线显示，数据存储功能，自定义温度标签功能。(this applicaion is used to get the temperature and pressure of the HVAC system by ADAM4017 and ADAM4018. include the cure print, the data storage and user defined label for 8 channels temperature.)

有助于学习LS信道估计的编码,以及mmse和LMMSE(ls chanel MMSE CHANEL LMMSE CHANEL)

AWGN信道的代码，实现简单易懂，用C写的(AWGN channel code is simple to understand, written in C)

OFDM同步算法的仿真matlab，用于LTE系统的OFDM技术，获得时域同步有很多算法，该文件提供了部分matlab的代码(OFDM synchronization algorithm simulation matlab, for the LTE system OFDM technology, access to time-domain synchronization, there are many algorithms, the document provides part of the matlab code)

基于子空间的MIMO-OFDM系统的盲信道估计，可直接运行(Subspace-based MIMO-OFDM system for blind channel estimation can be directly run)

一个真正SERVER PUSH的聊天室，很不错，C语言所写，最可惜的是已经被编译过了，但是界面全部被独立出来了的，可以自行更改，只是不能研究程序的内部结构…… (a real SERVER PUSH chat rooms, very good, C language written, it is most unfortunate that has been compiled, but the interface were all independent of and can make changes, but the procedures are not able to study the internal structure of ...)

multipath signal description with read technique

RTCM协议说明文档，介绍RTCM协议详细内容，帧结构。(rtcm frame )

16QAM光信号信号调制，传输以及解调解调(16QAM signal modulation and demodulation)