2dpsk

说明：  ethercat通信协议栈及其源代码，可用于嵌入式开发及ethercat主站搭建。(EtherCAT communication protocol stack and its source code)

数码管驱动 按键扫描程序，通讯线少 程序模块，简单(Digital tube driver button scanning program, communication line less program module, simple)

MATLAB仿真软件在通信系统仿真中的应用(MATLAB simulation software in the communication system simulation)

用于调制识别的代码，通过提取特征参数，实现bpsk，qpsk等调制方式的识别(For modulation recognition code, through the extraction of characteristic parameters, implementation bpsk, qpsk forms of identification, such as modulation)

大气波导下，电磁波射频追踪研究，利用Matlab进行仿真(Radio Frequency Tracking of Electromagnetic Waves in Atmospheric Waveguide)

超宽带无线通信仿真平台，基于IEEE标准制定，IR-UWB(Ultra-wideband wireless communications simulation platform, based on IEEE standards, IR-UWB)

WIgner Ville Distribution for time frequency analysis

航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency )

实现LDPC码校验矩阵的构造，采用Mackay 1A方法(Implementation of LDPC code check matrix construction uses Mackay 1A method)

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