| Holographic storage scheme based on digital signal processing |
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| 引用本文： | 贾克斌,杨大鹏,敦书波,陶世荃,覃鸣燕. Holographic storage scheme based on digital signal processing[J]. 中国光学快报(英文版), 2003, 1(10) |
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| 作者姓名： | 贾克斌 杨大鹏 敦书波 陶世荃 覃鸣燕 |
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| 作者单位： | College of Electronic Information，Beijing University of Technology，Beijing 100022，College of Electronic Information，Beijing University of Technology，Beijing 100022，College of Electronic Information，Beijing University of Technology，Beijing 100022，College of Applied Sciences，Beijing University of Technology，Beijing 100022，College of Applied Sciences，Beijing University of Technology，Beijing 100022 |
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| 基金项目： | This work was supported by the National fuud for Fundamental Key Project(No.973G19990330) and theNational Natural Science Foundation of China（No．69977005）． |
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| 摘 要： | In this paper, a holographic storage scheme for multimedia data storage and retrieval based on the digital signal processing (DSP) is designed. A communication model for holographic storage system is obtained on the analogy of traditional communication system. Many characteristics of holographic storage are embodied in the communication model. Then some new methods of DSP including two-dimensional (2-D) shifting interleaving, encoding and decoding of modulation-array (MA) code and method of soft-decision, etc. are proposed and employed in the system. From the results of experiments it can be seen that those measures can effectively reduce the influence of noise. A segment of multimedia data, including video and audio data, is retrieved successfully after holographic storage by using those techniques.
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Holographic storage scheme based on digital signal processing |
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| Abstract: | In this paper, a holographic storage scheme for multimedia data storage and retrieval based on the digitalsignal processing (DSP) is designed. A communication model for holographic storage system is obtainedon the analogy of traditional communication system. Many characteristics of holographic storage areembodied in the communication model. Then some new methods of DSP including two-dimensional (2-D)shifting interleaving, encoding and decoding of modulation-array (MA) code and method of soft-decision,etc. are proposed and employed in the system. From the results of experiments it can be seen that thosemeasures can effectively reduce the influence of noise. A segment of multimedia data, including video andaudio data, is retrieved successfully after holographic storage by using those techniques. |
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