QCA电路及其FPGA设计研究

发布时间：2018-04-17 02:38

本文选题：QCA + 电路设计　；参考：《合肥工业大学》2015年硕士论文

【摘要】：随着传统CMOS器件的飞速发展,传统CMOS器件的尺寸越来越小。在此背景下,传统FPGA取得了空前的发展。但同时一些制约传统FPGA继续飞速发展的因素慢慢凸显出来,像量子效应、大泄漏电流、高功耗密度、复杂布线与串扰等问题。在寻找能够替代传统CMOS器件过程中,在上个世纪90年代,量子细胞自动机(Quantum-dot Cellular Automata, QCA)被提出。由于其尺寸小、功耗低、运算速度快、易于扩展等原因迅速被广大科研工作者关注。一些传统电路中的器件像加法器、减法器、触发器等器件；在QCA电路中相继被实现。并有科研工作者对QCA器件的可靠性,容错性做了充分的研究。本文先介绍了传统CMOS器件、FPGA的发展并说明了面临的问题。然后详细介绍了QCA电路的基本知识、时钟控制方式、信息传输机制以及设计仿真软件。通过对QCA电路做了充分的研究,利用QCA电路设计仿真软件QCADesigner,本文设计并实现了基于QCA的全新的双边沿JK触发器、两种不同汉明码编码／解码电路、模块化加法器以及乘法器,并对它们进行了详细的分析对比。通过这些基本的电路器件设计与分析,充分展示了QCA电路的性质与优势,并总结了这些电路设计对后续电路设计的作用。最后,本文结合实际案例总体分析了设计基于QCA的FPGA应该遵循的实现方式,并设计了一种全新的路由方式。然后利用该路由策略对提出的案例进行改进,并取得不错的成果。
[Abstract]:With the rapid development of traditional CMOS devices, the size of traditional CMOS devices is becoming smaller and smaller.In this context, the traditional FPGA has made unprecedented development.But at the same time some factors which restrict the rapid development of traditional FPGA such as quantum effect large leakage current high power density complex wiring and crosstalk etc.Quantum-dot Cellular Automata (QCA) was proposed in the 1990s in order to replace the traditional CMOS devices.Because of its small size, low power consumption, fast operation speed and easy expansion, it has been concerned by many researchers.Some traditional circuits, such as adders, subducers and flip-flops, have been implemented in QCA circuits.The reliability and fault tolerance of QCA devices have been studied by some researchers.This paper first introduces the development of traditional CMOS devices and explains the problems.Then, the basic knowledge of QCA circuit, clock control mode, information transmission mechanism and design of simulation software are introduced in detail.Through the full research of QCA circuit, using the QCA circuit design and simulation software QCA designer, this paper designs and implements a new bilateral JK flip-flop based on QCA, two different hamming code coding / decoding circuits, modular adder and multiplier.They are analyzed and compared in detail.Through the design and analysis of these basic circuit devices, the properties and advantages of QCA circuits are fully demonstrated, and the effect of these circuit designs on the subsequent circuit design is summarized.Finally, this paper analyzes the implementation of FPGA based on QCA, and designs a new routing method.Then the routing strategy is used to improve the proposed case, and good results are obtained.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN791

【相似文献】