全息存储中的线性分组码

Linear Block Codes in Holographic Data Storage

低密度奇偶校验码 (L DPC)由于其突出的纠错能力目前得到学术界的显著关注 .然而由于编码过程过于复杂 ,使得 L PDC并不很适合于数字全息存储 .在本文我们结合组合方法来改进编码设计过程 ,因而编码设计非常简单 ,用简单的与非门电路即可实现 .

Low-density parity-check (LDPC)codes with iterative decoding has been a topic of great current interest because of its remarkable near-capacity performance recently. However, the coding technique is very complexity. It is incapable of operating in the Data storage field. In this paper, a simple LDPC codes is constructed in accordance with combinatorial method and triple systems, and implemented in ordinary logic circuit. It meets the demand of fast readout in holographic data storage.