The research of the thesis is framework design of the switch , the whole plan of hardware and software design , the schematic circuit design , and pcb layout , electromagnetic compatible design , signal integrality design and hot design of 10 / 100m module 本论文主要研究该交换机的架构设计,硬件整体设计方案,软件整体设计方案,电路原理图的设计,百兆交换模块的pcb布版设计、电磁兼容设计、信号完整性设计和热设计。
The author designs the commonly used hardware platform of if digital receiver in software radio , and companying with the schematic circuit plot analyses the working principle of hardware system , moreover , explains the properties and usages of some important digital processors 作者设计了软件无线电中频数字化接收机通用硬件平台,结合原理图对硬件工作的机理进行了全面的分析,并对一些重要的数字芯片的特性和使用作了说明。
First of all , a chaos control method based on variable ' s differential feedback is presented and applied to control chaos on chaotic chua ' s circuit . and then based on this chaos control method , two schematic circuits are designed , i . e . continuous differential feedback realization and impulse differential feedback realization . the circuit simulations are consistent with the theoretical analysis and numerical simulations 首先针对混沌chua电路提出了应用变量的微分反馈控制混沌的方法,并设计了基于该方法的两种电路实现方案,即连续微分反馈控制电路实现和脉冲微分控制电路实现,电路仿真的结果与理论分析和数值模拟具有很好的一致性。
In the design of this project , the author has participated in the following works : the system design , chips selected , and making schematic circuit diagram of the interface hardware , and pcb design 、 debug , and the fpga control - program design , system testing and debugging , and some drivers of wince . this paper will introduce the principle of the dvb - t series standards firstly , then the sketchy design of the system will be stated 本人主要从事系统设计,接收板硬件原理图及印制电路板( pcb )设计制作并调试, fpga控制程序设计, wince部分驱动程序开发和系统联调等工作。本文在介绍数字地面电视广播( dvb - t )相关标准的基础上,阐述了系统总体设计,软硬件实现具体方案与原理