DDR_interface

In recent years, the number of portable mobile terminal users is increasing with improvement of the wireless communication environment. In addition, mobile multimedia services also bring the increase of wireless traffic and lack of spectrum resources. As a technique for efficient spectrum use, spectrum sharing receives much attention. It dynamically assigns a spectrum channel from a larger area network such as WiMAX to smaller area networks such as WiFi-based wireless LANs and achieves to increase the total wireless communication capacity of this area. In a case where all providers are cooperative, the spectrum sharing can be realized easily and improve user throughput in average. In another case where providers are not cooperative, some spectrum trading methods based on auction theory had been proposed.

WSN中节点确定性部署算法代码，覆盖率达到100％，算法思路简单，易于实现(Uncertainty in the deployment of WSN node algorithm code, the coverage reached 100, algorithm idea is simple, easy to realize)

角谱--VCSEL发出的光，经过透镜耦合进入光纤，仿真给出光由VCSEL进过透镜进入光纤的过程(Angular spectrum)

说明：  bch 编码、解码程序，可以对任意长度的信息添加纠错码。(BCH encoding, decoding procedures can be arbitrary length of the right information to add error-correcting codes.)

说明：  给程序给出了功率放大器预失真过程中的时延同步问题。(This codes provides the time delay synchronization in the process of power amplifier predistortion.)

用simulink实现电力电子技术中的降压电路，可应用于光伏发电(Implementation of buck circuit with Simulink)

Channel estimation for a MIMO-OFDM system for AWGN channel estimation technique Cyclic prefix length

说明：  QT编写的CAN通讯源代码文件，通讯盒子用的是珠海芯创的can盒(The source code file of CAN communication written by QT. The communication box is the can box of Zhuhai Xinchuang.)

Offset between filter input samples (see notes).

数字信号处理，利用matlab语言仿真，对信号进行滤波。(Digital signal processing, using MATLAB language simulation to filter the signal)