基于DSP的MODEM传输系统硬件PCB设计及信号完整性分析
发布时间：2018-12-17 10:00
【摘要】：短波通信是指利用波长为10～100米的无线电波进行数据传输的一种远距离通信方式。由于短波通信系统设备成本低,体积小,抗干扰能力强的特性,使短波通信广泛应用于军事,海事,气象等领域。 随着微电子技术,软件无线电技术的发展,作为短波通信设备的核心部分,调制解调器向小型化,数字化,高速,高可靠有效性的方向发展。 本文在第三代通信协议MIL_STD_188_110C的基础上,提出了高速串行调制解调器全新的硬件平台架构：双核高性能DSP+FPGA。同时通过EDA电路仿真软件设计硬件平台高速电路,完成信号完整性分析。其主要工作如下。 1.基于对高速电路信号完整性理论的研究,介绍了常见的信号完整性问题,给出了解决信号完整性问题的措施,为设计高速电路提供理论依据。 2.统筹设计规划硬件平台,将硬件平台分为DSP,FPGA和音频信号处理三个模块,并围绕三个模块核心器件DSP,FPGA和音频芯片的功耗,时钟,以及外围接口要求实现外围电路的设计。根据系统功耗,上电时序等设计硬件平台的电源网络。 3.系统高速PCB设计,分析系统高速信号线的信号完整性,并通过仿真软件SigXplorer和Hyperlynx对高速信号线进行仿真,给出仿真结果和改善信号质量的方法。
[Abstract]:Short-wave communication is a kind of long-distance communication which uses radio waves of 10 ~ 100 meters. Shortwave communication system is widely used in military, maritime and meteorological fields because of its low cost, small volume and strong anti-jamming ability. With the development of microelectronic technology and software radio technology, as the core part of shortwave communication equipment, modem is developing towards miniaturization, digitalization, high speed, high reliability and efficiency. Based on the third generation communication protocol MIL_STD_188_110C, this paper proposes a new hardware platform architecture of high speed serial modem: dual core high performance DSP FPGA.. At the same time, the high-speed circuit of hardware platform is designed by EDA circuit simulation software, and the signal integrity analysis is completed. Its main work is as follows. 1. Based on the research on the theory of signal integrity in high-speed circuits, the common problems of signal integrity are introduced, and the measures to solve the problems are given, which provide the theoretical basis for the design of high-speed circuits. 2. The hardware platform is designed as a whole. The hardware platform is divided into three modules: DSP,FPGA and audio signal processing. The design of peripheral circuit is realized around the power consumption, clock and peripheral interface of DSP,FPGA and audio chip. According to the system power consumption, power sequence and other design hardware platform power supply network. 3. The high speed PCB of the system is designed to analyze the signal integrity of the high speed signal line of the system. The simulation results and the methods to improve the signal quality are given through the simulation software SigXplorer and Hyperlynx.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN41;TN911.6
本文编号：2384049
[Abstract]:Short-wave communication is a kind of long-distance communication which uses radio waves of 10 ~ 100 meters. Shortwave communication system is widely used in military, maritime and meteorological fields because of its low cost, small volume and strong anti-jamming ability. With the development of microelectronic technology and software radio technology, as the core part of shortwave communication equipment, modem is developing towards miniaturization, digitalization, high speed, high reliability and efficiency. Based on the third generation communication protocol MIL_STD_188_110C, this paper proposes a new hardware platform architecture of high speed serial modem: dual core high performance DSP FPGA.. At the same time, the high-speed circuit of hardware platform is designed by EDA circuit simulation software, and the signal integrity analysis is completed. Its main work is as follows. 1. Based on the research on the theory of signal integrity in high-speed circuits, the common problems of signal integrity are introduced, and the measures to solve the problems are given, which provide the theoretical basis for the design of high-speed circuits. 2. The hardware platform is designed as a whole. The hardware platform is divided into three modules: DSP,FPGA and audio signal processing. The design of peripheral circuit is realized around the power consumption, clock and peripheral interface of DSP,FPGA and audio chip. According to the system power consumption, power sequence and other design hardware platform power supply network. 3. The high speed PCB of the system is designed to analyze the signal integrity of the high speed signal line of the system. The simulation results and the methods to improve the signal quality are given through the simulation software SigXplorer and Hyperlynx.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN41;TN911.6
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