基于FPGA的DBPSK通信系统设计与实现

发布时间：2018-01-11 12:44

本文关键词：基于FPGA的DBPSK通信系统设计与实现　出处：《中国民航大学》2014年硕士论文　论文类型：学位论文

更多相关文章： DBPSK FPGA 上下变频 科斯塔斯环

【摘要】：差分二进制相移键控(DBPSK)是现代通信领域广泛应用的调制方式,常被应用于卫星通信、微波通信等诸多领域。近年来,随着大规模集成电路和软件无线电技术的发展,DBPSK调制与解调在无线通信领域取得了广泛应用。本文对DBPSK通信系统进行研究并采用FPGA实现该系统。论文主要开展四个方面的工作:首先,根据数字通信理论,提出DBPSK通信系统的设计方案,其中主要包括系统参数、物理层数据帧结构以及发射机架构和接收机架构的设计。其次,详细描述了系统发射机与接收机的组成模块和相关参数,并利用Matlab仿真系统。在此基础上提出系统的FPGA实现方案并采用Verilog语言加以实现。再次,分析了上下变频器和科斯塔斯(Costas)载波同步环的理论,通过Matlab仿真获得关键的设计参数,并利用Verilog语言完成上下变频器和科斯塔斯载波同步环的FPGA实现。最后,在Xilinx公司Virtex 5的FPGA开发板上进行硬件实现并通过在线逻辑分析仪观测FPGA内部信号,完成系统性能的检测。
[Abstract]:Differential binary phase shift keying (DBPSK) modulation is widely used in the field of modern communication, is often used in satellite communications, microwave communications and other fields. In recent years, with the development of integrated circuit and software radio technology, DBPSK modulation and demodulation has been widely applied in the field of wireless communications is studied in this paper. The DBPSK communication system and the FPGA implementation of this system. This paper mainly carried out in four aspects: first, according to the digital communication theory, puts forward the design scheme of DBPSK communication system, including system parameters, physical layer data frame structure and transmitter architecture and receiver architecture design. Secondly, the module system and transmitter the receiver and the related parameters are described in detail, and the use of Matlab simulation system. Based on this system the implementation scheme of FPGA and using Verilog language to realize. Second, analysis of the upper and lower frequency converter and Kostas (Costas) carrier synchronization loop theory, the key design parameters are obtained by Matlab simulation, and the use of Verilog language to complete the FPGA downconverter and Kostas carrier synchronization loop. Finally, in the Xilinx Virtex FPGA 5 development board for hardware implementation and through online logic analyzer the observation of FPGA signals, complete the detection performance of the system.

【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN914

【相似文献】