polarization-knowledge

华为内部员工学习资料，对于想进华为的朋友会有很大帮助。(The internal staff s learning materials in huawei is more helpfull for someone who want to go huawei.)

this is a paper for pcf beam splitter!

CUM200的中文使用说明书，包含CMU200的大部分实用功能(The Chinese CUM200 instructions)

说明：  document qpsk vhdl code

Multi-Carrier Cooperative Wireless Communication

Pocket Guide for Asynchronous Transfer Mode and ATM Testing

iEEE 601 标准 信道编码相关 卫星通信(the standard channel iEEE 601 encoding related satellite communications)

介绍bch的基础知识，包括纠删码的编码和解码(Introduce the basic knowledge of bch, including the encoding and decoding of erasure codes)

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.

宽带射频功率放大器的数字预失真技术研究论文，学习资料(Broadband rf power amplifier digital predistortion technology research )