“电子设计自动化”课程建设及教学实践

文章分析了EDA技术及其课程的主要特点，介绍了广东工业大学信息工程学院进行EDA教学实践的情况。     

面向物联网的光载WiFi链路与波长分配协议

A novel Wireless Fidelity (WiFi) over fiber link and a wavelength assignment protocol are proposed to provide sufficient bandwidth and extensive coverage range for the various applications in the Internet of Things (IoT). The performance of the WiFi over fiber-based wireless IoT network is evaluated in terms of error vector magnitude (EVM) and data throughput for both the up and down links between the WiFi central control system and remote radio units (RRUs). The experimental results illustrate the reliability of the fiber transmission of 64 Quadrature Amplitude Modulation (64QAM) WiFi signals by direct analog modulation. In order to efficiently utilize the wavelength resources, we also demonstrated the wavelength assignment protocol by employing optical switching configurations in Central Station (CS) to realize the wavelength switching, and the simulation results indicate the queuing size and the corresponding queue delay for different numbers of available wavelengths.     

基于FPGA的数字功率放大器的设计

以可编程器件XC2S200E为核心器件设计了一个数字功率放大器。设计中通过FPGA实现对音频信号的采样控制，并将采样的数字信号转换为脉宽调制（PWM）信号，然后驱动H桥电路，实现功率放大。设计采用先进的FPGA芯片和可靠的同步设计，具有很好的灵活性和稳定性。     

一种大迟延系统的自适应补偿方法

本文以二阶带大迟延系统为例，基于Ｓｍｉｔｈ补偿器提出了一种简便而实用的方法，对Ｓｍｉｔｈ补偿器的参数实现在线自适应调整，适当选择适应性增益参数，利用计算机运算速度快的特点，可以获得较好的补偿效果，最后给出了参数跟踪的仿真结果。     

一种大迟延系统的自适应补偿方法

本文以二阶带大迟延系统为例，基于Ｓｍｉｔｈ补偿器提出了一种简便而实用的方法．对Ｓｍｉｔｈ补偿器的参数实现在线自适应调整．适当选择适应性增益参数，利用计算机运算速度快的特点．可以获得较好的补偿效果．最后给出了参数跟踪的仿真结果．