ユニークワードをエミュレートしない可変長符号の生成法
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概要
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A systematic design method for a variable length code (VLC) which makes using a unique word possible is proposed. A unique word is an effective and practical technique for synchronizatiion recovery from continuous erroneous states in binary signal transmission, especially with VLC'_3 that can damage reconstructed signals severely. Use of it, however, restricts the selection of VLC codewords so that no combination of them in a bit stream emulates the unique word in order to guarantee its uniqueness. Due to the need of special care about the bit pattern of the VLC'_3 for a unique word, such VLC'_3 have been constructed only heuristically. This paper proposes a systematic technique to construct an emulation-less VLC with little efficiency loss, and analyzes the efficiency quantitatively based on the occurrence probabilities and unique word length. This paper also suggests application of the new method to multiple VLC'_3.
- 1996-02-29
論文 | ランダム
- 本学に於けるフランス語の教授法を模索して : 学生のアンケートより
- 本学におけるフランス語の教育に関する一考察(その一) : 学生のアンケートより
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