modulation

多路复用写的一个可收发数据的串口应用程序(Write a multiplexer can send and receive serial data applications)

OFDM系统的LS和DFT信道估计的算法分析比较(LS and DFT OFDM system channel estimation algorithm analysis and comparison)

One issue with underwater sensors is how to efficiently transfer large amounts of data collected by the node to an interrogating platform such as an underwater vehicle. It is often impractical to make a physical connection between the node and the vehicle which suggests an acoustic or optical wireless solution. For large amounts of data, the high bandwidth of underwater optical wireless is an advantage. A small, low-cost platform to demonstrate the potential of an optical wireless communications interface for underwater sensor nodes is demonstrated. To enhance the reliability and robustness of the optical wireless communication digital signal processing and error correction techniques are used. The system was tested in 3 and 7.7 meter tanks at 5 Mbps with the turbidity of the water controlled by the addition of Maalox.

光纤通信系统中的相干光仿真，包括数字信号处理的全部过程和光纤信道的建模，针对16QAM的调制格式，带有Nyquist信号生成(Coherent light simulation in optical fiber communication system, including the whole process of digital signal processing and the modeling of optical fiber channel)

说明：  matlab实现STBC的MIMO-OFDM的系统级仿真(Simulation of STBC MIMO-OFDM System with MATLAB)

用SC译码算法进行极化码的解码，经典方法(Decoding of polarization codes with SC decoding algorithm)

说明：  用于iOS平台的 ping demo,对苹果原生代码的封装(use for iOS partform ping demo)

comparaison of photovoltaic mppt algorithms

国网376.1报文解析工具，所有的报文都能正确解析，支持 Q/GDW 376.1-2009协议和 Q/GDW 1376.1-2013协议(Support Q/GDW 376.1-2009 Communication protocol and Q/GDW 1376.1-2013 Communication protocol)

modbus 协议文本，介绍MODBUS协议的所有内容，(Modbus text of the agreement to introduce all the elements of MODBUS protocol,)