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前言用模拟方法进行相干光计算时,计算机的输入输出变量都是连续的,不是分离的。这种方法具有快速和简单的优点,但是正如电子模拟计算机一样,它有精度差和准确性不足的缺点。实际上,现在的电子模拟计算机不难达到千分之一的精度,而相干光计算机通常精度限制在1%到10%。相干光模拟计算机以它巨大的并行处理能力优于其它技术。相干光模拟计算机的应用限制在精度要求不高的范围。本文的目的是略述实现相干光数字计算技术的进展。虽然基于这种技术的不完整的相干光数字计算机系统还正在实现之中,然而这一技术的原理应给予介绍。
Preface Using simulation methods for coherent light calculation, the computer’s input and output variables are continuous, not separated. This method has the advantage of being quick and easy, but like the electronic analog computer, it has the drawbacks of poor accuracy and lack of accuracy. In fact, today’s electronic analog computer is not difficult to achieve the accuracy of one thousandth, and coherent light computer is usually limited to 1% to 10% accuracy. Coherent light simulation computers outperform other technologies with its tremendous parallel processing power. The application of coherent light simulation computer is limited in the range of less demanding accuracy. The purpose of this article is to outline the progress made in implementing the digital computation of coherent light. Although incomplete coherent optical digital computer systems based on this technology are still being implemented, the principle of this technique should be introduced.