基于FPGA的无线通信系统的设计与实现

发布时间：2018-06-16 02:40

本文选题：无线通信系统 + FPGA　；参考：《东北大学》2014年硕士论文

【摘要】：随着无线通信地不断发展,研究人员设计的无线通信的理论方案越来越多。它们的系统性能越来越好,但这仅仅是理论上的结果。方案的设计能不能经得起实际环境的考验,还需要将理论方案在实际环境中进行仿真和测试才可以确定,对于物理层的理论方案,更是如此。这就需要满足特定要求的无线通信系统平台。在此背景之下,基于软件无线电的无线通信系统平台就应运而生了。基于软件无线电的无线系统平台主要由硬件平台部分和软件平台部分组成。在“软件无线电”的思想下,软件系统平台部分不断地得到强化,而硬件平台部分则不断地被弱化,这对于系统的实效性不利。另外,这也不意味着硬件平台部分越来越简单了。系统的“软化”使得硬件平台需要承载的系统带宽越来越宽；越来越高的工作频率也对电路和电路板的设计与制作提出了更高的要求。本文的研究重点是硬件平台部分的设计和分析。本文的目的有两个：一是实现一个实时性较好的无线通信平台；二是掌握硬件系统中各个模块的设计,为未来设计硬件更加灵活和智能的无线系统平台打下坚实的基础。本文主要的研究内容和贡献如下：1)无线通信系统的整体方案设计。由于所采用的信号的载频较低,这里采用了直接变频的结构。在系统的整体设计的基础上,本文对系统中的同步过程做了详细的设计和分析。2)对系统的硬件电路的各个功能模块进行了详细的分析和仿真。包括电路的设计原理、设计方法及相关的仿真和测试结果。对于其中比较关键的匹配电路设计,提出了适用于实际的设计方案。3)系统的软件控制、处理部分和系统的调试。系统采用FPGA编程来控制硬件电路的工作。通过系统调试,系统工作良好。
[Abstract]:With the continuous development of wireless communications, there are more and more theoretical schemes for wireless communication designed by researchers. Their system performance is getting better and better, but it is only a theoretical result. The design of the scheme can stand the test of the actual environment, and the theoretical scheme is also simulated and tested in the actual environment. In this context, the platform of wireless communication system based on software radio has come into being. The platform of wireless system based on software radio is mainly composed of hardware platform and software platform. Under the idea of radio, the software system platform is constantly strengthened, and the hardware platform is constantly weakened, which is unfavorable to the effectiveness of the system. In addition, it does not mean that the hardware platform is becoming more and more simple. The higher working frequency also puts forward higher requirements for the design and production of circuit and circuit board. The focus of this paper is the design and analysis of the hardware platform. The purpose of this paper is two: one is to realize a good real-time wireless communication platform; the two is to master the design of each module in the hardware system and design for the future. The main research contents and contributions of this paper are as follows: 1) the overall scheme design of the wireless communication system. Because of the low carrier frequency of the signals used, the structure of direct frequency conversion is adopted here. On the basis of the system's whole body design, the synchronization of the system is synchronized. The detailed analysis and Simulation of each function module of the hardware circuit of the system, including the design principle of the circuit, the design method and the related simulation and test results, is made in the detailed design and analysis of the hardware circuit of the system. The software control of the system which is suitable for the actual design scheme is proposed for the key matching circuit design in the.2. The system adopts FPGA programming to control the work of hardware circuit. Through system debugging, the system works well.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92

【相似文献】