均衡

用于变电所的电力103通信测试的源代码,主要用在工控行业(103 for electricity substation communications test source code, mainly used in the industrial sector)

说明：  主要运用matlab仿真mpsk、16qam的星座图，里面有很多关于函数的参数注释，适合初学者(Realization of MPSK 16QAM constellation in MATLAB)

封装了windows操作串口的几个API（CreateFile， ReadFile，WriteFile，SetComState）。串口的读写设置这几个操作都可以简单地只用关键一两个参数就能实现操作。也是一个很好的例子，我写这个之前查了不少资料，感觉非常麻烦，索性发出来给新手们作个样例(Windows serial COM port access class，it includes CreateFile, SetComState，ReadFile，WriteFile，CloseFile)

这是蓝牙4.0的规范说明文档，对于了解4.0协议有所帮助。(This is the Bluetooth 4.0 specification document helpful for understanding the 4.0 protocol.)

水声OFDM通信系统基于导频的信道估计算法研究(Pilot based channel estimation algorithm for underwater acoustic OFDM communication system)

principle_of_communication……matlab(principle_of_communication.matla)

HDLC控制协议中CRC校验码算法代码，为CRC16，Verilog语言(HDLC Control Protocol Code in the CRC checksum algorithm code for CRC16, Verilog language)

MIMO系统 容量和天线数目关系 通过仿真可以看出 容量随着天线数目的变化(Antenna MIMO system capacity and the number of relations can be seen through the simulation volume with changes in the number of antennas)

这是一个基于OPtisystem下的对于8PSK信号的仿真，可用于通信工程作业的一般仿真系统。(This is a simulation system of 8PSK signal based on OPtisystem, which can be used in general simulation system of communication engineering operation)

实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM communication system based on STBC under different SNR is realized. The transmitter includes baseband modulation, space-time coding, pilot insertion, IFFT, serial-parallel combination and adding cyclic prefix; the receiver includes removing cyclic prefix, extracting pilot estimation channel, FFT operation, parallel-serial combination, space-time decoding, etc. The complex orthogonal space-time coding matrix is used in QPSK and space time coding in 4*3. The number of OFDM subcarriers is 100, and each subcarrier transfers 66 symbols with 2 bits per symbol. IFFT is 512 symbols in length. The transmitting antenna is 3 receiving antennas, 2.)