基于一致卷积码的视频数据不等保护方法及特点

2010 4th International Conference on Application of Information and Communication Technologies Pub Date : 2010-10-28 DOI:10.1109/ICAICT.2010.5612052

V. K. Konopilko, A. Korolov, Ahmed Said Elalam

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引用次数: 0

摘要

众所周知的信息符号不平等保护方法[1]是基于信码结构实现的，使用多相和多级调制方法，在适当的信号集分割水平上分组具有不同校正能力的代码，或者将传输的信息分割成有效和非有效信息符号流。有效信息符号采用基于循环汉明码、bch码和具有码码穿孔能力的卷积码的级联码进行编码。这些信息符号不等保护方法的缺点是传递的信息过多(≥60%)，重要信息符号传递的可靠性相对较低;

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Methods and characteristics of videodata unequal protection based on uniform convolutional codes

Well-known methods of unequal protection of information symbols from errors are implemented [1] based on signal-code structures using multi-phase and multi-level modulation methods and group codes with different correcting capacity on the appropriate levels of signal set segmentation or with segmentation of transferred information into flows of significant and non-significant information symbols. Significant information symbols are encoded by cascade code based on cyclic Hamming codes, BCH-codes and convolution code with code symbols perforation capacity. Disadvantages of these unequal protection methods of information symbols are the high excessiveness of the transferred information r ≥ 60% and relatively low reliability of significant information symbols transfer:

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2010 4th International Conference on Application of Information and Communication Technologies

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