OFDM_Modulation_o

将ADC对输入端口电压的转换结果按转换数据和对应的模拟电压的形式通过串口发送到PC机屏幕上显示(The ADC input port voltage conversion results by converting data and the corresponding analog voltage sent to the PC via the serial port on the screen)

In recent years, the number of portable mobile terminal users is increasing with improvement of the wireless communication environment. In addition, mobile multimedia services also bring the increase of wireless traffic and lack of spectrum resources. As a technique for efficient spectrum use, spectrum sharing receives much attention. It dynamically assigns a spectrum channel from a larger area network such as WiMAX to smaller area networks such as WiFi-based wireless LANs and achieves to increase the total wireless communication capacity of this area. In a case where all providers are cooperative, the spectrum sharing can be realized easily and improve user throughput in average. In another case where providers are not cooperative, some spectrum trading methods based on auction theory had been proposed.

默认产生（0，1）的高斯随机数，参数可调(Gauss random number (0,1) is generated by default with adjustable parameters.)

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)

主要关于ofdma中资源分配动态分配的算法中的注水算法的介绍(it is about waterfilling allocation dynamic allocation of ofdma algorithm introduced)

这个程序采用现代谱估计的ARMA参数模型算法对信号的功率谱做了估计(The program uses the ARMA parameter model algorithm of modern spectral estimation to estimate the power spectrum of the signal.)

实现电力线通信信道建模及其基于OFDM调制系统环境下仿真。(Power line communication channel modeling and simulation of OFDM system)

关好电力规约IEC103的编程流程图.()

说明：  雷达发射宽带信号，线性调频信号模糊度函数(Radar transmitting wideband signal, ambiguity function of LFM signal)

双边带调制和单边带调制的Simulink仿真模块(Bilateral band modulation and single sideband modulation Simulink Simulation Module)