| 基于逻辑操作和符号数字表达的光学并行负二进制运算 |
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| 引用本文： | 李国强,刘立人,钱家钧,殷耀祖.基于逻辑操作和符号数字表达的光学并行负二进制运算[J].中国激光,1997,24(7):659-664. |
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| 作者姓名： | 李国强 刘立人 钱家钧 殷耀祖 |
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| 作者单位： | 中国科学院上海光机所 |
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| 摘 要： | 研究了光学负二进制并行算术运算。基于符号数字负二进制表达，提出了任意字长操作数的并行两步加法与一步减法。这些基本运算都可通过空间编码与解码的光学逻辑实现，从而提供了一种有效的光学算术－逻辑单元（ＡＬＵ）设计方案。
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| 关 键 词： | 数字光计算，光逻辑，并行处理 |
| 收稿时间： | 1996/6/5 |
Optical Parallel Negabinary Arithmetic Based on Logic Operation and Signed digit Representation |
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| Li Guoqiang,Liu Liren,Qian Jiajun,Yin Yaozu.Optical Parallel Negabinary Arithmetic Based on Logic Operation and Signed digit Representation[J].Chinese Journal of Lasers,1997,24(7):659-664. |
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| Authors: | Li Guoqiang Liu Liren Qian Jiajun Yin Yaozu |
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| Abstract: | One kind of optical parallel negabinary arithmetic is investigated. Based on sign digit negabinary representation, the two step addition and one step subtraction of arbitrary length operands can be performed. The arithmetic is realized by logic operations and implemented by the spatial encoding technique, which offers an efficient design of optical arithmetic logic unit(ALU). |
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| Keywords: | digital optical computing optical logic parallel processing |
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