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Research and Design on Video Time-lingering Observation Host(Digital Video Security Observation Equipment)

Author: ZengYao
Tutor: WangHongYuan
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: Digital Video Broadcasting Television Observation System Community Antenna Television Time-lingering Observation
CLC: TN949.197
Type: Master's thesis
Year: 2007
Downloads: 61
Quote: 1
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Abstract


With the developing of digital video broadcasting, security broadcasting control and observation equipment would be applied more in every aspect of digital video broadcasting system. During the analog television times, TV program observation adopted surveillance, monitor, RF signal analysis and all-around observation manner, which ensured security broadcasting of TV program. Some difficult problems adopted digital technique to settle. Such as time-lingering broadcasting technique in living broadcasting, linearity analysis technique and so on. During the digital television times, we need stricter DVB observation. Digital TV signal is good or bad, which directly decide the quality of broadcasting signal and running state of system equipment.The paper firstly summarizes in the developing of Chinese digital video broadcasting, introducing illegal signal interfere problem of video broadcasting in recent years, reviewing developing course and technique retrospection Chinese video broadcasting observation., introducing meanings of television observation, illustrate the styles of television observation, which contain security observation, quality observation, content observation, traveling observation and satellite interference observation. Then it discusses correlate observation technique of radio television, community antenna television and satellite television.Secondly the paper introduces content and function of security broadcasting observation system in community antenna television, summing up some projects of security broadcasting observation system in community antenna television in currently market. Then illustrate the function and application of AD916 time-lingering inspection host. Then describes the flow and structure of system. The result of synthesis and implement demonstrates the system functionality. Lastly the tag reviews the whole paper and expects the developing foreground of broadcasting television observation.

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