OFDM

说明：  已封装好C#调用JSON语句方法，dll文件(Encapsulated C# Call JSON Statement Method, DLL File)

使用matlab的LDPC编码，映射为64QAM，软解调(ldpc coding whic is very good)

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：  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)

LTE系统中小区的选择，根据物理位置或是最大发射功率(enb in LTE system)

仿真二进制正交信号通过AWGN信道后的误比特率性能，每个信号周期取样10次，接收端采用相关器，Eb/N0的范围是0到12dB(Simulation binary quadrature signals by the bit error rate performance in an AWGN channel, each signal cycle sampled 10 times, the receiving side uses the correlation Eb/N0 is the range of from 0 to 12dB)

GPRS的IP协议源程序，对初学者有用。(GPRS protocol of the IP source code, useful for beginners.)

说明：  使用Labview平台计算误码率，绘制误码率曲线，用于通信系统仿真。(Calculate the bit error rate and reconstruct the bit error rate curve)

说明：  ls 与 mmse 两种信道估计算法比较(Comparison of LS and MMSE channel estimation algorithms)

说明：  简单实现基于各种加权分数傅里叶变换的混合载波系统(Simple implementation of hybrid carrier system based on various weighted fractional Fourier transform)