射线信道模型

GD32F库函数，各种外设，gpio等等(gd32 library v2.0.0 gpio ..)

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

说明：  通过串口解析MODBUS协议 读开关量型的输入信号 读保持寄存器上的内容 批量写数据到保持寄存器(Resolving MODBUS Protocol through Serial Port Input signal of reading switch type Read and hold registers Write data in batches to hold registers)

简单实现基于加权分数傅里叶变换的混合载波系统(Simple Implementation of Hybrid Carrier System Based on Weighted Fractional Fourier Transform)

network and other tehnologies. lan arhitecture

说明：  PDA开发 WINDOWS 平台上的PDA开发(PDA development on WINDOWS platform PDA development)

直接序列扩频通信中采用QPSK调制时，须将产生的串行数据首先串并变换成两路，本程序就是实现这种串并变换！(Direct sequence spread spectrum communications using QPSK modulation, it is necessary to have a string of serial data and converted into the first two, the process is to realize such a string, and transform!)

v2v信道建模，参数依据论文《Deep reinforcement learning based resource allocation in V2V communications》(V2V channel modelling, parameters are based on published paper Deep reinforcement learning based resource allocation in V2V communications)

说明：  模拟调制识别各特征参数随信噪比变化曲线。信号的瞬时信息包括瞬时幅度、瞬时相位、瞬时频率及其不同角度的统计特征值，其中瞬时幅度、瞬时相位、瞬时频率是一个信号最基本的特征。（AM、DSB、SSB、VSB、FM、AM-FM）(Simulated Modulation Recognition Curve of Variation of Characteristic Parameters with Signal-to-Noise Ratio)

说明：  半带滤波器，工作在采样率122.88Msps上(Half-band filter, working at the sampling rate of 122.88 Msps)