MskModem

说明：  基于matlab实现OFDM，调制方式为QPSK，可以对信道的状态进行估计(OFDM is realized based on MATLAB, the modulation mode is QPSK, and the channel state can be estimated)

this code simulate pure aloha .

the pdf entitled The Modulo Lattice Channel The Key Feature in Precoding is attached

Power Allocation for Underlay Device-to-Device Communication over Multiple Channels

循环谱代码，应用于盲分离信号处理。非常适用于初学者，代码完整，仿真结果正确。(Cyclic spectrum code)

说明：  自己实现的基于串口通讯发送短消息的低层协议JAVA代码，对于初学者有一定的参考和帮助价值，特意上传上来共享一下！(Their own realization of serial communication based on sending short messages JAVA code low-level agreement, for beginners there is a certain degree of reference and to help the value of deliberately upload up to share about!)

MIMO——OFDM系统实现,代码完整，适合练习使用(The implementation of MIMO and OFDM system)

针对MIMO系统的系统辨识，包含数据预处理相关知识，系统介绍了系统辨识的整个过程(It is used in MIMO system,including data processing.This article introduces the whole process of system identification.)

标准MODBUS规约文档。Modbus 协议是应用于电子控制器上的一种通用语言。通过此协议，控制器相互之间、控制器经由网络（例如以太网）和其它设备之间可以通信。它已经成为一通用工业标准。(Standard MODBUS Statute of the document. Modbus protocol is applied to an electronic controller on the lingua franca. With this agreement, the controller between the controller via the network (such as Ethernet) and other devices can communicate. It has become a common industry standard.)

对语音信号进行加噪，求它的功率谱，降噪处理(Adding noise to speech signal and reducing noise)