Developing the theory for the design and implementation of secured computer communication systems 研發(fā)更安全的電腦傳播系統(tǒng)設(shè)計(jì)和推行理論
Abstract : the application process of computer communication system network in metrology management and its practical significance are introduced 文摘:介紹了計(jì)算機(jī)通訊聯(lián)網(wǎng)在計(jì)量應(yīng)用管理工作中的應(yīng)用過程以及使用它的現(xiàn)實(shí)意義。
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 網(wǎng)絡(luò)媒體是以計(jì)算機(jī)通信網(wǎng)絡(luò)為基礎(chǔ)的,由于計(jì)算機(jī)通信網(wǎng)絡(luò)是以計(jì)算機(jī)和數(shù)據(jù)通信網(wǎng)絡(luò)為基礎(chǔ)的應(yīng)用管理系統(tǒng),因而它是一個(gè)開放式的互聯(lián)網(wǎng)絡(luò)系統(tǒng)。
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 本文首先介紹了電力線通信技術(shù)在國內(nèi)外的研究概況,分析了電力線載波信道的傳輸特性,討論了適合于電力線通信的擴(kuò)頻載波通信方式,然后結(jié)合通信網(wǎng)絡(luò)的要求,在分析電力線通信應(yīng)用模式的基礎(chǔ)上,提出了一種基于usb接口的室內(nèi)計(jì)算機(jī)電力線通信方案,進(jìn)行了理論上的分析和數(shù)字仿真,設(shè)計(jì)了電力線modem模塊和計(jì)算機(jī)接口模塊,編制了相應(yīng)的軟件程序,并對(duì)軟件進(jìn)行了測(cè)試分析。
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 光碼分多址( ocdma )通信系統(tǒng),作為一種擴(kuò)展頻譜系統(tǒng),用戶同時(shí)共享所有帶寬,因?yàn)榭梢猿浞掷霉饫w中的巨大帶寬資源,因此在未來超高速局域網(wǎng)和實(shí)時(shí)計(jì)算機(jī)通信系統(tǒng)中將扮演重要角色。