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
- 訪問カウンセラーの心理 (訪問カウンセリング--危機に立ち臨み語るこころ) -- (訪問臨床の心理)
- ひきこもりと訪問カウンセリング (訪問カウンセリング--危機に立ち臨み語るこころ) -- (訪問と臨床活動)
- インターネットとひきこもり--表象化不全の世界 (メールカウンセリング) -- (電子メールによるカウンセリング活動)
- ひきこもりと表現--音楽療法の実践 (ひきこもり) -- (ひきこもりとカウンセリング)
- 訪問カウンセラーから見たひきこもり--訪問カウンセラーの泣き笑い日記 (ひきこもり) -- (ひきこもりの考え方とその対応)