Developing the theory for the design and implementation of secured computer communication systems 研发更安全的电脑传播系统设计和推行理论
Abstract : the application process of computer communication system network in metrology management and its practical significance are introduced 文摘:介绍了计算机通讯联网在计量应用管理工作中的应用过程以及使用它的现实意义。
The network media is based on computer communications system , but the hardware , software , and communications system are not secure enough , at the same time , the user are lacking in security ideas and technology that can be used . what ' s more , the laws and regulations are relatively lagging behind 网络媒体是以计算机通信网络为基础的,由于计算机通信网络是以计算机和数据通信网络为基础的应用管理系统,因而它是一个开放式的互联网络系统。
Considering the requirement of communication network , a local area computer communication system of plc based on usb interface was given after analyzing the application model of plc . then after theoretical analysis and digital simulation , the plc modem and the computer interface models were designed . the design of software about the two models was also finished 本文首先介绍了电力线通信技术在国内外的研究概况,分析了电力线载波信道的传输特性,讨论了适合于电力线通信的扩频载波通信方式,然后结合通信网络的要求,在分析电力线通信应用模式的基础上,提出了一种基于usb接口的室内计算机电力线通信方案,进行了理论上的分析和数字仿真,设计了电力线modem模块和计算机接口模块,编制了相应的软件程序,并对软件进行了测试分析。
Optical code multiple access ( ocdma ) communication system is a spectral spreading system . all users in the system share all the bandwidth in the same time . because of the using of the almost infinitude bandwidth in the fiber , ocdma system will become more and more important in future ultra - high speed lan and online computer communication system 光码分多址( ocdma )通信系统,作为一种扩展频谱系统,用户同时共享所有带宽,因为可以充分利用光纤中的巨大带宽资源,因此在未来超高速局域网和实时计算机通信系统中将扮演重要角色。