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宽带数据推播技术及其传送流的软件合成 预览

Broadband Data Push-casting Technology and the Composition of the Transport Stream Based on Software
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摘要 电视节目传输数字化已成为趋势,数字视频广播使通过广播业务提供宽带数据服务成为可能.文中介绍了DVB标准中的各种数据广播规范,详尽地分析了应用于数据推播的数据传送带传输机制,并给出了合成MPEG-2传送流的软件流程图.数据推播将能够比因特网更好地为本地用户服务,也是解决上网费用过高、速度太慢、有线电视网络双向改造投资大这些问题的好方法. Digitalization of TV program becomes the trend. It is possible to provide broadband data service through DVB. The specifications about data broadcast of DVB are outlined in this paper. A detailed theoretical analysis is made on data carousels applied to data push-casting, and the software flow chart of the composition of MPEG-2 transport stream is also given. Data push-casting can provide better service than Internet for the local subscribers, and it is a good method to resolve the problems such as high cost, low speed of accessing Internet, and great investment of reforming HFC networks.
作者 宋军 甘育裕 吴资玉 SONG Jun 1, GAN Yu yu 2, WU Zi yu 2 (1.College of Electrical Engineering, Chongqing University, Chongqing 400044, China; 2.College of Communication Engineering, Chongqing University, Chongqing 400044, China)
机构地区 重庆大学 重庆大学
出处 《重庆大学学报:自然科学版》 CAS CSCD 北大核心 2002年第2期 63-66,共4页 Journal of Chongqing University(Natural Science Edition)
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参考文献6

  • 1[1]Advanced Television Systems Committee, ATSC Digital Television Standards.http://www.atsc.org,1994. 被引量:1
  • 2[2]Digital Video Broadcasting Project [EB/OL],Specifications for Digital Video Broadcast[EB/OL]. http://www.dvb.org,1997. 被引量:1
  • 3[3]Digital Audeo Video Committee, DAVIC 1.5 Specifications[EB/OL]. http://www.davic.org,1999. 被引量:1
  • 4[4]ISO/IEC 13818-1 1994, Information technology - Generic coding of moving pictures and associated audio information - Extension for Digital Storage Media Command and Control[S]. 被引量:1
  • 5[5]EN301 192 1997, Digital Video Broadcast specification for data broadcasting[S]. 被引量:1
  • 6[6]ISO/IEC 13818-1 1994, Information technology - Generic coding of moving pictures and associated audio information - Part 1: System - International Standard(IS)[S]. 被引量:1
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