| 区县1550nm灾备传输系统设计和测试 |
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| 引用本文： | 李芳.区县1550nm灾备传输系统设计和测试[J].中国有线电视,2011(12):1385-1393. |
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| 作者姓名： | 李芳 |
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| 作者单位： | 杭州市广播电视科学技术研究所,浙江杭州,310008 |
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| 摘 要： | 为确保广播电视信号不间断传输,增强对突发事件的应急响应能力,杭州利用1 550 nm传输技术结合色散补偿技术,建设了区县数字电视灾备信号模数混合传输网。介绍杭州区县1 550 nm灾备传输网设计方案和系统指标测试,证实1 550 nm经过300多km传输后仍然具有优良的播出质量,满足国家广电总局新颁布的《广播电视安全播出管理规定》的要求,1 550 nm光纤传输技术在数字电视区县联网中具有广阔的应用前景。
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| 关 键 词： | 灾备 SDH 光纤传输 数字电视 色散补偿 |
County 155Onto Transmission System Design and Test Disaster Recovery |
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| LI Fang.County 155Onto Transmission System Design and Test Disaster Recovery[J].China Cable Television,2011(12):1385-1393. |
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| Authors: | LI Fang |
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| Affiliation: | LI Fang(Hangzhou Radio and Television Institute of Science and Technology,Zhejiang Hangzhou 310008,China) |
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| Abstract: | To ensure uninterrupted broadcast television signal transmission, enhance the ability of emergency response to emergencies. Hangzhou 1550nm transmission technology combines the use of dispersion compensation technology to build a county disaster recovery digital television signals mixed analog -digital transmission network. This paper describes the Hangzhou district 1550nm transmission network design and disaster recovery system indicators tested 1550nm after transmission through 300 km of the broadcast still has excellent quality, come to disaster recovery system construction to meet the SARFT issued a new ＂radio broadcast television safe- ty regulations＂ requirements, 1550nm optical fiber transmission technology networking applications in the digital TV counties still have application |
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| Keywords: | disaster recovery SDH optical transmission digital television dispersion compensation |
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