| DRM系统的信源编码和信道编码 |
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| 引用本文： | 万志强.DRM系统的信源编码和信道编码[J].现代电子技术,2008,31(15). |
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| 作者姓名： | 万志强 |
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| 作者单位： | 国家广播电影电视总局五六一台,江西,南昌,330212 |
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| 摘 要： | 依据ETSI颁布的DRM系统标准,对DRM系统所采用的信源编码和信道编码方法进行了分析和研究,详细阐述了AAC、CELP和HVXC三种信源编码的工作原理和实现方法,详细阐述了卷积编码器的工作原理。另外,简要介绍了频带恢复技术在DRM中的应用。
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| 关 键 词： | DRM 信源编码 信道编码 SBR |
Source Encoding and Channel Encoding in DRM System |
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| WAN Zhiqiang.Source Encoding and Channel Encoding in DRM System[J].Modern Electronic Technique,2008,31(15). |
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| Authors: | WAN Zhiqiang |
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| Abstract: | According to the DRM system standard released by the ETSI,source encoding and channel encoding are analyzed and researched in this paper.Then the principle and realization of three approaches-AAC,CELP,HVXC-of source encoding are described particularly.The theory of convolutional encoder is investigated in this paper.The spectral band replicated for DRM system is introduced simply. |
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| Keywords: | DRM source encoding channel encoding SBR |
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