【作者】 左开中；

【导师】 金翊；

【作者基本信息】 上海大学 ， 计算机应用技术， 2011， 博士

【摘要】 解码器是三值光学计算机的关键部件之一,它在三值光学计算机与电子计算机之间建立了一座桥梁,为三值光学计算机在军事、生物信息学、大型数据库信息检索和信息安全等领域的实际应用奠定了坚实基础。巨位数三值光学计算机解码器研究将推动三值光学计算机的发展,具有重要的理论意义与应用价值。三值光学计算机用线偏振态和光强混合编码表示三值数字信息,解码器的作用是自动判读三值光学运算器输出光信号的物理状态,并将其转换为电信号,解调出加载在三态光信号中的三值数字信息。本文以三值光学计算机理论、降值设计理论、偏振光学理论、光电转换技术和嵌入式技术为基础,对三值光学计算机解码器工作原理、设计方案和工程实现进行了深入和系统研究。在实现了三态光信号判定、光电转换、定标、运算图像二值化等关键技术的基础上,成功研制出一种百位数实用解码器样机。通过对百位三值光学逻辑运算结果的解码实验,验证了该解码器原理的正确性和设计的可行性;通过对实用解码器系统的压力测试与随机测试,验证了解码器样机工作的稳定可靠性。论文的主要创新工作有:1.经过对比分析,采用了基于分振幅法的三态光信号判定方法,用于构造三值光学计算机解码器;2.提出了三值光学计算机解码器结构模型和设计方案,并阐述了工作原理和实现技术;3.研制了基于嵌入式微处理器和CMOS数字图像传感器的百位实用三值光学计算机解码器原型。论文还介绍了大量的实验工作,它们分别证明了所完成解码器的有效性和可靠性。该解码器的理论、技术和设计在构建中的千位三值光学计算机应用研究实验系统中发挥着重要作用。更多还原

【Abstract】 As one of the key components of Ternary Optical Computer (TOC), decoder makes a good connection between TOC and the electronic computer. This means that through decoder, TOC can communicate and share information smoothly with traditional electronic computer. This is very important and helpful. For it may set the basis for the TOC in the applications such as in military, bioinformatics, information retrieval in large database and information security etc. which are beyond the capability of traditional electronic computer. Therefore, the research on the decoder with huge number of data bits promotes the further study and development of TOC, and has important theoretic significance and applied value.Using the intensity and polarization state of light to express tri-valued digit information, i.e., 1, 0, and -1, TOC is a kind of three-valued computer. The role of the decoder in TOC is to automatically analyze and interpret the state of light signal emitted from the arithmetic logical unit of TOC. Besides it also answers for converting the tri-state light signal into digit electron signal and translating the signals into its tri-valued digit.In this dissertation, the theory, design and engineering implementation method of the decoder have been studied and discussed systematically based on the theories about TOC, decrease-radix design and polarization optics, photoelectric conversion technology and embedded-system technology and so on. After solved some key issues, such as, determining the Tri-stated signal, photoelectric conversion, calibrating, binarizing image etc., a new practical prototype of the decoder was developed successfully. To demonstrate the decoder, decoding experiments for hundred-bit tri-valued logic optical operation are carried out based on the tri-valued hundred-bit optical logic experiment system. Experimental results show the theoretical model of the decoder is correct and the structure design is feasible. Besides, the results of the stress and randomized testing also show that the practical prototype of the decoder is highly reliable and stable.The main contributions of the dissertation are presented as follows:1. Through comparative analysis, we selected the method of determining the tri-stated optical signal based on division of amplitude method to construct the decoder of TOC.2. Present the structural model and design scheme of the decoder, and the working principle and supporting technique are elaborated.3. Develop a new practical hundred-bit decoder based on embedded microprocessor unit and CMOS digital image sensor.The dissertation introduced also some experiments demonstrating the validity and reliability of the decoder. The theory and technology of the decoder play an important role in constructing the applied experimental system of the thousand-bit TOC.更多还原