| AAL层抗信元丢失技术 |
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| 引用本文： | 朱伯春,全子一.AAL层抗信元丢失技术[J].电讯技术,1997,37(5):18-23. |
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| 作者姓名： | 朱伯春 全子一 |
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| 作者单位： | 北京邮电大学 |
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| 摘 要： | ＡＴＭ网络中传输视频信号存在的信元丢失会严重影响接收图象的质量，可以从视频编解码端与ＡＴＭ适配层采取抗信元丢失技术以减少该影响。不同ＡＡＬ有不同的抗信元丢失原理。本文分别对用ＡＡＬ１，ＡＡＬ２，ＡＡＬ５适配ＭＰＥＧ－２视频信号时在ＡＡＬ层采取的抗信元丢失技术进行了分析。
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| 关 键 词： | 视频信号传输 抗信元丢失技术 ATM网 |
Cell loss Concealment Techniques in AAL |
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| Zhu Bochun,Quan Ziyi.Cell loss Concealment Techniques in AAL[J].Telecommunication Engineering,1997,37(5):18-23. |
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| Authors: | Zhu Bochun Quan Ziyi |
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| Affiliation: | Beijing Univ.of Posts and Telecomms |
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| Abstract: | The cell loss of video transport over ATM network degrades the received image quality seriously.Cell loss concealing techniques can be adopted at codec and AAL.The priciples of cell loss concealing technique are different with AAL from each other.The techniques are analysed respectively when adapting MPEG 2 video by AAL1,AAL2,and AAL5. |
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| Keywords: | Video Signal Transportation Cell-loss Concealing Technique |
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