S7300_S7400plc

说明：  小数频锁相环建模，适用于学习了解小数频率综合器设计人群。(Modeling of fractional frequency PLL)

使用NMEA0183的gps服务程序原码(use of a GPS NMEA0183 service program source)

基于FPGA的16QAM调制解调设计，以及仿真实现(Design of 16QAM Modulation and Demodulation Based on FPGA)

在OPNET上搭建场景，仿真接入算法，使用的是S-ALOHA接入算法，以仿真吞吐量、时延等性能(Build a scene on OPNET, simulation access algorithm, using the S-ALOHA access algorithm to simulate the throughput, latency and other performance)

massive MIMO 系统的各种性能仿真(Performance simulation of massive MIMO system)

说明：  频率选择性信道下无编码OFDM系统的误码率曲线。(BER of OFDM signals in FS channel without coding)

采用Simulink 平台对OFDM 进行仿真，确定系统的参数，完成参数设置，构建了一个简单的OFDM通信系统。(Using Simulink platform to simulate OFDM, determine the parameters of the system, complete the parameter settings, and build a simple OFDM communication system.)

说明：  程序中比较了NOMA和OFDMA在容量方面，附带一篇论文，讲的比较详细(The program compares noma and OFDMA in terms of capacity, with a paper, more detailed)

说明：  基于梳状导频的LS信道估计算法与无信道估计算法性能对比(Performance Comparison between LS Channel Estimation Algorithm and Channelless Estimation Algorithm Based on Comb Pilot)

种基于VB6．0开发的可进行瓦斯监测并报警的友好界面。该界面通过串行通信方式接收各种瓦斯报警器采集的数据。(Species can be developed based on VB6.0 gas monitoring and alarm-friendly interface. The serial communication interface to receive a variety of gas alarm, the data collected.)