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c#编写串口通讯代码 多线程实现,老外写的，很有用，很全面(c# write serial communication code multithreading, written by foreigners, very useful, very comprehensive)

给任意IP地址发送一个欺骗icmp包,发送方的IP地址和MAC地址可以随意填写(To deceive any IP address to send a icmp packet, the sender' s IP address and MAC address can be free to fill)

51单片机主机和从机通过485测AD电压，有程序和仿真(51 single chip computer host and slave machine through 485 AD voltage, program and simulation)

this is simply a report on the fading channel on different modulation scheme

Modbus 主站读写程序，主要用于工业控制领域通讯链接使用。(Modbus main station reader and writer program)

OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced. Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results. )

说明：  pi/4-dqpsk-1的verilog工程，实现电脑与FPGA自发自收(pi/4-dqpsk-1,It can realize the self receiving of computer and FPGA)

说明：  5G 网络 matlab 仿真 5G网络场景模拟 仿真 matlab代码，可运行(Matlab simulation of 5G network)

说明：  对无线通信瑞利衰减信道进行建模的仿真代码，共有三种模型(Rayleigh channel simulation code)

bpsk调制matlab代码,仿真验证正确(bpsk modulation)