revised_simu_multi_path

5G主同步信号m序列根据公式matlab生成(5G Pss m matlab generater)

说明：  仿真了ofdm的LS和MMSE的信道估计程序，并进行了比较，能调通运行(Ofdm simulation of the LS and MMSE channel estimation procedures, and compared to pass transfer operation)

该工程实现对单载波系统QPSK的频偏估计算法。调相信号在接收机相干解调时需要同频同相的参考载波，而发射机和接收机之间往往存在频率偏差，为了消除这种误差，必须在软件层面实现。使用了QPSK四相调制的信号特点进行载波频偏估计，经验证，效果较好。(This project implements frequency offset estimation algorithm for single carrier system QPSK. The phase modulation signal needs the same frequency reference carrier in the coherent demodulation of the receiver, and the frequency deviation often exists between the transmitter and the receiver. In order to eliminate this error, it must be implemented on the software level. The carrier frequency offset estimation is carried out by using the signal characteristics of QPSK four phase modulation.)

MFC编程 实现数据绘制成曲线。经兄弟推荐最终决定用两个控件MCSCOMM与TeeChart来完成此任务。MCSCOMM控件时vc自带的串口控件，TeeChart Pro是一个强大的VCL图表组件，支持上百种2D和3D图表风格，并提供40多个数学和统计函数、无限制的轴和22个调色板(MFC programming realizes data plotting into curves. After recommendation by brothers, we finally decided to use two controls, MCSCOMM and TeeChart, to accomplish this task. TeeChart Pro is a powerful VCL graphics component that supports hundreds of 2D and 3D graphics styles and provides more than 40 mathematical and statistical functions, unlimited axes and 22 palettes.)

SPMA 基于信道忙统计的多信道媒体接入控制协议，低时延高可靠(SPMA Statistics-based multichannel channel media access control protocol, high reliability and low latency)

51MODBUS从机程序源码希望对有用的人有用，，(51MODBUS,welcom to here,thank you very mouch.)

主要介绍空中接口物理链路层的无线技术，共分三个部分，首先对主要接口和协议作 简单介绍和描述；然后分别介绍信道与帧；无线信道编码与交织以及LAPDm。(Mainly introduces Wireless technology of air interface in the physical link layer which is divided into three parts. first: a brief introduction and description of the main interfaces and protocols then:Road and frame and last radio channel coding and interleaving and LAPDm .)

弯管机PLC程序，可以参考学习，结合自己使用的实际情况改设置就可使用。(The bending machine PLC program, you can refer to learning, combined with the actual situation of their use changed settings can be used.)

matlab实现的fft程序，可酌情作为参考(Matlab implementation of the FFT program, as appropriate, as a reference)

作为TCP客户端跟TCP服务端进行通讯，支持modbus协议(As a TCP client to communicate with the TCP server to support the modbus protocol)