Channel estimation LS MMSE

Performace analysis of Zero Forcing detection in (2,2) MIMO system using 4 QAM modulation in Rayleigh Flat Fading Channel

开关GPRS,定时开启或者关闭，保护流量(TURN ON GPRS OR TURN OFF)

瑞利多径衰落信道仿真，jakes模型，有图(rayleigh fading)

ofdm/oqam系统源码 4qam调制下oqam与cp——ofdm比较(ofdm/oqam system source code modulation oqam 4qam with cp- ofdm Compare)

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)

空域零陷，首先用doa技术估计直达波方向，然后置零，用于直达波消除。(In spatial nulling, DOA technique is used to estimate the direction of direct wave, and then zeroing is used to eliminate direct wave.)

说明：  数字信号QPSK调制，卷积编码，根升余弦滤波器，高斯信道。并画出误码率曲线。(Digital signal QPSK modulation, convolutional coding, root-up cosine filter, Gauss channel. The error rate curve is drawn.)

研究d2d通信加中继节点来优化蜂窝小区边缘用户通信，并通过MATLAB仿真(The D2D communication and relay nodes are studied to optimize the edge user communication of cellular cell, and the simulation is carried out by MATLAB.)

通信基本仿真3,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器（巴特沃斯Butterworth,切比雪夫Chebyshev）,Bartlett周期图谱，加窗Bartlett周期图谱，基带波形仿真，IIR的贝塞尔滤波器Bessel Filter，二进制对称信道Binary Symmetric Channel仿真，比特序列，Remez滤波，BPSK复合基带信号仿真，载波生成器，椭圆滤波器Elliptical Filter，FFT,FSK调制及解调，高斯噪声Gaussian仿真，直方图，理想AM，线性PLL，BP混淆器，理想MPSK，正交振幅调变（QAM，Quadrature Amplitude Modulation），正交相移键控(QPSK)，Rayleigh Noise瑞利噪声，Yule-Walker Psd功率谱密度函数。(matlab simulte)

无线电力传送，无线充电 ，无线传输论文，共振原理抓住电磁波。(Wireless power transmission, wireless charging, wireless transmission papers to seize the resonance theory of electromagnetic waves.)