Soft Decision Decoding for Holographic Memories with Intrapage Intensity Variations
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概要
- 論文の詳細を見る
A holographic memory system using a two-dimensional array of code sequences and soft decision decoding is implemented. The random error correction and burst error correction capability of this system is shown. We can obtain lower bit error rates using soft decision Viterbi decoding rather than using hard decision decoding or simple thresholding. Different threshold levels for each data pixel position are determined by considering intrapage intensity variations. With these threshold levels, much lower bit error rates are obtained. The experimental results are presented.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-03-30
著者
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Lee Byoungho
National Research Laboratory Of Holography Technologies School Of Electrical Engineering Seoul Natio
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Byun Kyung
National Research Laboratory of Holography Technologies, School of Electrical Engineering, Seoul National University, Shinlim-Dong, Kwanak-Gu, Seoul 151-742, Korea
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Jeon Seungjune
National Research Laboratory of Holography Technologies, School of Electrical Engineering, Seoul National University, Shinlim-Dong, Kwanak-Gu, Seoul 151-742, Korea
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Han Seunghoon
National Research Laboratory of Holography Technologies, School of Electrical Engineering, Seoul National University, Shinlim-Dong, Kwanak-Gu, Seoul 151-742, Korea
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Yang Byungchoon
National Research Laboratory of Holography Technologies, School of Electrical Engineering, Seoul National University, Shinlim-Dong, Kwanak-Gu, Seoul 151-742, Korea
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Lee Byoungho
National Creative Research Center for Active Plasmonics Application Systems, Inter-University Semiconductor Research Center and School of Electrical Engineering, Seoul National University, Gwanak-gu, Sillim-dong, Seoul 151-774, Korea
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