超便携式软件无线电平台关键技术研究与验证

发布时间：2018-07-18 07:51

【摘要】：随着无线通信技术的迅猛发展,通信制式呈现出多样化、复杂化的特点。传统的硬件无线电设备由于功能单一且可重构性差,无法满足不同通信制式间通信的需求。软件无线电技术通过重构或加载不同的软件编程可实现不同的通信功能,摆脱了硬件的制约,具有开放性与可扩展性等特点,并且其平台应用逐步向小型化、集约化发展。论文针对软件无线电平台小型化、高度集约化的发展趋势,设计并实现了一款体积小、可重构性高的超便携式软件无线电平台。该平台将Xilinx-Zynq-7020可编程系统级芯片与AD9361综合射频捷变收发器相结合,兼容GNU Radio,为无线通信提供快速验证方案。主要工作如下:首先,研究了软件无线电的定义与体系结构,分析了其采用的信号采样理论与数字信号处理技术理论基础。针对论文平台应用场景做完成电路需求与分析,分别对数字信号处理模块、射频电路、控制传输模块等做出了功能分析,对射频电路、电源模块做出了性能分析。其次,依据平台电路功能与性能需求完成了电路的架构与模块化设计。该平台基带数字信号处理模块关键芯片选用Xilinx ZYNQ芯片,射频电路核心芯片选用AD9361捷变收发器。最后,根据平台电路的架构方案设计,完成了各模块的详细电路实现。详细分析实现了板卡片间控制、信号流向与各模块间的连接,并充分考虑了PCB布局布线的约束设计。最后,搭建了软硬件测试环境对该平台进行了功能与性能上的测试分析。论文设计并实现的超便携式软件无线电平台体积小、集成度与可重构性高,可广泛应用于无线通信系统验证与高校通信教学与科研实验,对软件无线电的应用演进乃至无线通信的发展有着一定的意义。
[Abstract]:With the rapid development of wireless communication technology, the communication system presents the characteristics of diversification and complexity. Because of its single function and poor reconfiguration, the traditional hardware radio equipment can not meet the requirements of communication between different communication systems. The software radio technology can realize different communication functions by reconstructing or loading different software programming. It gets rid of the restriction of hardware and has the characteristics of openness and expansibility, and its platform application is gradually developing to miniaturization and intensification. Aiming at the trend of miniaturization and highly intensive software radio platform, a small and reconfigurable ultra-portable software radio platform is designed and implemented in this paper. The platform combines Xilinx-Zynq-7020 programmable system-level chip with AD9361 integrated RF transceiver and is compatible with GNU Radio. it provides a fast verification scheme for wireless communication. The main work is as follows: firstly, the definition and architecture of software radio are studied, and the theoretical basis of signal sampling theory and digital signal processing technology are analyzed. According to the application scene of the paper, the function of digital signal processing module, radio frequency circuit and control transmission module are analyzed, and the performance of radio frequency circuit and power supply module are analyzed. Secondly, according to the platform circuit function and performance requirements, the circuit architecture and modular design are completed. The key chip of the baseband digital signal processing module is Xilinx ZYNQ chip, and the core chip of RF circuit is AD9361 transceiver. Finally, according to the design of the platform circuit, the detailed circuit implementation of each module is completed. The control between the boards and cards, the connection between the signal flow direction and the modules are analyzed in detail, and the constraint design of PCB layout and wiring is fully considered. Finally, the software and hardware testing environment is built to test and analyze the function and performance of the platform. The ultra-portable software radio platform designed and implemented in this paper has the advantages of small size, high integration and reconfiguration, and can be widely used in the verification of wireless communication system and the teaching and research experiments of communication in colleges and universities. It has certain significance to the application evolution of software radio and the development of wireless communication.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN92

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