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首页基于FPGA技术的QPSK数字调制与解调仿真
FPGA(现场可编程门阵列技术)是二十年前出现,而在近几年快速发展的可编程逻辑器件技术。这种基于EDA技术的芯片正在成为电子系统设计的主流。大规模可编程逻辑器件FPGA是当今应用最广泛的可编程专用集成电路(ASIC)。设计人员利用它可以在办公室或实验室里设计出所需的专用集成电路,从而大大缩短了产品上市时间,降低了开发成本。此外,FPGA还具有静态可重复编程和动态在系统重构的特性,使得硬件的功能可以像软件一样通过编程来修改。因此,FPGA技术的应用前景非常广阔。 数字调制解调技术在数字通信中占有非常重要的地位,数字通信技术与FPGA的结合是现代通信系统发展的一个必然趋势。文中介绍了QPSK调制解调的原理,并基于FPGA实现了QPSK调制解调电路。MAX+PLUSII环境下的仿真结果表明了该设计的正确性。
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基于 FPGA 技术的数字调制(QPSK)的仿真
研究
The simulation of digital modulation (QPSK) based on FPGA
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摘 要
FPGA(现场可编程门阵列技术)是二十年前出现,而在近几年快速发展的可编程逻
辑器件技术。这种基于EDA技术的芯片正在成为电子系统设计的主流。大规模可编程逻
辑器件FPGA是当今应用最广泛的可编程专用集成电路(ASIC)。设计人员利用它可以在
办公室或实验室里设计出所需的专用集成电路,从而大大缩短了产品上市时间,降低了
开发成本。此外,FPGA还具有静态可重复编程和动态在系统重构的特性,使得硬件的功
能可以像软件一样通过编程来修改。因此,FPGA技术的应用前景非常广阔。
数字调制解调技术在数字通信中占有非常重要的地位,数字通信技术与 的结
合是现代通信系统发展的一个必然趋势。文中介绍了 调制解调的原理,并基于
实现了 调制解调电路。 环境下的仿真结果表明了该设计的正
确性。
关键词:调制 解调
I

Abstract
The FPGA (field programmable gates array technology) is 20 years ago, and in recent years
appears rapid development of programmable logic device technology. This is based on the chip
is becoming EDA technology of electronic system design mainstream. Large-scale
programmable logic devices FPGA is the most widely used nowadays the programmable
application-specific integrated circuit (ASIC). Designers use of it can be in the office or in the
lab design the required application-specific integrated circuit, thereby greatly shortened product
time-to-market, reduced the development costs. In addition, the FPGA also has static repeatable
programming and dynamic characteristics of the system reconstruction of functions, to make the
hardware like software like programmed to modify. Therefore, the FPGA technology application
prospect are very wide.
Digital demodulation technology in digital communication plays a very important role
digital communication technology and FPGA, the combination of modern communication
system development is a necessary trend. This paper introduces the principle of QPSK
demodulation, and based on FPGA realizing the QPSK demodulation circuit. MAX + PLUSII
environment of the simulation results show the correctness of design.
Keywords:

目 录
Abstract.....................................................................................................................II
第一章 引 言............................................................................................................1
1.1 FPGA 其特点及发展现状.................................................................................................1
1.1.1 FPGA 简介......................................................................................................................1
1.1.2 CPLD 与 FPGA 的关系............................................................................................1
1.1.3 FPGA 工作原理..............................................................................................................2
1.1.4 FPGA 的基本特点..........................................................................................................2
1.1.5 FPGA 与 CPLD 的辨别和分类.......................................................................................3
1.1.6 FPGA 的应用..................................................................................................................4
2.产品设计.....................................................................................................................4
3.系统级应用.................................................................................................................5
4.最新应用...............................................................................................................................5
1.2.2VHDL 特点......................................................................................................................7
与其他硬件描述语言相比,VHDL 具有以下特点:..........................................................7
1.功能强大、设计灵活...........................................................................................................8
2.支持广泛、易于修改....................................................................................................8
3.强大的系统硬件描述能力............................................................................................8
4.独立于器件的设计、与工艺无关................................................................................8
5.很强的移植能力............................................................................................................8
6.易于共享和复用............................................................................................................9
1.2.3 优势..................................................................................................................................9
1.3.1Max+plusⅡ 开发系统的特点..................................................................................10
1.3.2 设计流程.................................................................................................................10
1.3.3 设计步骤.................................................................................................................11
第二章 基于 FPGA 技术的 QPSK 调制的实现与仿真........................................13
结语.........................................................................................................................22
参考文献.................................................................................................................24
致谢.........................................................................................................................25
(后封面).............................................................................................................26
III

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