Neifeld M A
Appl Opt. 1995 Mar 10;34(8):1396-400. doi: 10.1364/AO.34.001396.
The use of sparse multivalued data encodings for the purpose of increasing the capacity of parallel-access optical memories based on Fourier-transform computer-generated holography is discussed. Results based on the Lee method indicate that a sparse encoding of nonbinary data words can be used to increase the storage-area utilization efficiency from 35% to > 70%. It is also found that for signal-to-noise ratios greater than 200, five-level data encoding can be used to achieve bit error rates less than 10(-12) reliably with 60% area efficiency.
讨论了使用稀疏多值数据编码来提高基于傅里叶变换计算机生成全息术的并行访问光学存储器的容量。基于李方法的结果表明，非二进制数据字的稀疏编码可用于将存储区域利用效率从35%提高到大于70%。还发现，对于大于200的信噪比，五级数据编码可用于以60%的面积效率可靠地实现小于10(-12)的误码率。
