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數(shù)字電視光纖傳輸網(wǎng)絡(luò)設(shè)計(jì)畢業(yè)論文(已修改)

2025-07-27 22:43 本頁面
 

【正文】 數(shù)字電視光纖傳輸網(wǎng)絡(luò)設(shè)計(jì) 數(shù)字電視光纖傳輸網(wǎng)絡(luò)設(shè)計(jì) The Design of Digital TV fiber optic Transmission Network I 摘 要 隨著時(shí)代的發(fā)展,網(wǎng)絡(luò)的發(fā)展越來越快,光纖網(wǎng)絡(luò)隨著科技的發(fā)展不斷的向不同的用戶延伸,偏遠(yuǎn)地區(qū)光纖網(wǎng)絡(luò)需要覆蓋到所有的地區(qū),部分村和區(qū)需要的不只一個(gè)光節(jié)點(diǎn);再是為適應(yīng)傳輸有線數(shù)字電視節(jié)目和交互數(shù)字信息的需 求,有線電視網(wǎng)絡(luò)逐步向改造升級(jí)為綜合寬帶信息網(wǎng)方向發(fā)展。為了適應(yīng)發(fā)展的要求,必須對(duì) IPTV/DVB 的傳輸網(wǎng)絡(luò)進(jìn)行整體的規(guī)劃和設(shè)計(jì)。 本課題對(duì) DVB 和 IPTV 傳輸系統(tǒng)的特點(diǎn)和功能進(jìn)行詳細(xì)的分析,然后從實(shí)際出發(fā),對(duì)宜都市城域網(wǎng)的傳輸部分進(jìn)行完整的設(shè)計(jì),設(shè)計(jì)出兩種方案,分別是雙向 HFC 網(wǎng)絡(luò)和單向 HFC 網(wǎng)絡(luò) +IP 網(wǎng)絡(luò),之后討論如何從最好的配置方法和 成本 等等方面來設(shè)計(jì)一個(gè)完整的傳輸網(wǎng)絡(luò),經(jīng)過一系列選擇,選定單向 HFC+IP 網(wǎng)絡(luò)完成宜都市城域網(wǎng)的傳輸網(wǎng)絡(luò)的設(shè)計(jì),對(duì)選定的方案即 DVB/IPTV 傳輸網(wǎng)絡(luò)進(jìn)行詳細(xì)的配置,畫出 路由圖,計(jì)算出指標(biāo)分配,經(jīng)驗(yàn)算后 ,得出最后的方案。 關(guān)鍵詞 : DVB IPTV 傳輸網(wǎng)絡(luò) II Abstract The development of the work more and more quickly, the fiber with the development of science and technology constantly extending to different users, remote area optical work need to cover all the area, part of the village area needs more than one node。 another is to adapt to the transmission of digital cable television program and interactive digitalinformation needs, cable television work to transform upgrade forintegrated broadband information work development. In order to meet the requirements of the development, must carry on the overall planning and design of the IPTV/DVB transmission work. In the subject, we on the DVB and IPTV transmission system features and functions in detail, and then from the reality, transmission parts of ametropolitan area of Yidu city for the plete design, we design two schemes, respectively is the bidirectional HFC work and oneway HFC Network + IP work, and then discuss how to the best configuration method and funds to design a plete man transmission work, the designselected oneway HFC+IP work transmission work of Yidu Citymetropolitan area work, the selected scheme that DVB/IPTV transmission work detailed configuration, draw the route chart and index allocation map, after a series of operations, that our final result, shows that its application in practice. Key words:DVB IPTV Transmission work III 目 錄 摘要 .................................................. 錯(cuò)誤 !未定義書簽。 Abstract .............................................. 錯(cuò)誤 !未定義書簽。 緒論 .................................................. 錯(cuò)誤 !未定義書簽。 1 DVB/IPTV 傳輸系統(tǒng) ................................... 錯(cuò)誤 !未定義書簽。 DVB 傳輸系統(tǒng) ..................................... 錯(cuò)誤 !未定義書簽。 IPTV 傳輸系統(tǒng) ..................................................... 3 2 設(shè)計(jì)要求及指標(biāo)分配 6 設(shè)計(jì)依據(jù) 6 相關(guān)技術(shù)標(biāo)準(zhǔn) 6 網(wǎng)絡(luò)功能和網(wǎng)絡(luò)發(fā)展規(guī)劃 6 方案選擇 6 雙向 HFC 網(wǎng)絡(luò) 7 單向 HFC+寬帶 IP 網(wǎng) 8 寬帶網(wǎng)絡(luò)組網(wǎng)方式 8 網(wǎng)絡(luò)組成和指標(biāo)分配 9 光發(fā)射機(jī)和光放大器 10 光接收機(jī) 10 有線電視系統(tǒng)的指標(biāo)分配 10 3 DVB/IPTV 網(wǎng)絡(luò)設(shè)計(jì) 14 網(wǎng)絡(luò)概況 14 指標(biāo)分配 14 光功率分配 14 前端光發(fā)射機(jī)與 EDFA 的配接 15 IV 指標(biāo)驗(yàn)算 15 網(wǎng)絡(luò)配置圖 16 寬帶網(wǎng)絡(luò)設(shè)備配置 17 結(jié)論 .................................................. 錯(cuò)誤 !未定義書簽。 致謝 ................................................................. 19 參考文獻(xiàn) ............................................................. 20 1 緒 論 傳輸網(wǎng)絡(luò)是指用一系列的介質(zhì)(光纖, 雙絞線 等)經(jīng)過電 路的調(diào)整變化依據(jù)網(wǎng)絡(luò)傳輸協(xié)議 來進(jìn)行通信的過程。其中網(wǎng)絡(luò)傳輸需要線路,也就是網(wǎng)絡(luò)中發(fā)送方與接收方之間的物理通路,它對(duì)網(wǎng)絡(luò)的數(shù)據(jù)通信具有一定的影響。常用的 傳輸介質(zhì) 有: 雙絞線 、同軸電纜、光纖、
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