【摘要】：隨著無線通信技術(shù)的迅猛發(fā)展,通信制式呈現(xiàn)出多樣化、復(fù)雜化的特點(diǎn)。傳統(tǒng)的硬件無線電設(shè)備由于功能單一且可重構(gòu)性差,無法滿足不同通信制式間通信的需求。軟件無線電技術(shù)通過重構(gòu)或加載不同的軟件編程可實(shí)現(xiàn)不同的通信功能,擺脫了硬件的制約,具有開放性與可擴(kuò)展性等特點(diǎn),并且其平臺(tái)應(yīng)用逐步向小型化、集約化發(fā)展。論文針對(duì)軟件無線電平臺(tái)小型化、高度集約化的發(fā)展趨勢,設(shè)計(jì)并實(shí)現(xiàn)了一款體積小、可重構(gòu)性高的超便攜式軟件無線電平臺(tái)。該平臺(tái)將Xilinx-Zynq-7020可編程系統(tǒng)級(jí)芯片與AD9361綜合射頻捷變收發(fā)器相結(jié)合,兼容GNU Radio,為無線通信提供快速驗(yàn)證方案。主要工作如下:首先,研究了軟件無線電的定義與體系結(jié)構(gòu),分析了其采用的信號(hào)采樣理論與數(shù)字信號(hào)處理技術(shù)理論基礎(chǔ)。針對(duì)論文平臺(tái)應(yīng)用場景做完成電路需求與分析,分別對(duì)數(shù)字信號(hào)處理模塊、射頻電路、控制傳輸模塊等做出了功能分析,對(duì)射頻電路、電源模塊做出了性能分析。其次,依據(jù)平臺(tái)電路功能與性能需求完成了電路的架構(gòu)與模塊化設(shè)計(jì)。該平臺(tái)基帶數(shù)字信號(hào)處理模塊關(guān)鍵芯片選用Xilinx ZYNQ芯片,射頻電路核心芯片選用AD9361捷變收發(fā)器。最后,根據(jù)平臺(tái)電路的架構(gòu)方案設(shè)計(jì),完成了各模塊的詳細(xì)電路實(shí)現(xiàn)。詳細(xì)分析實(shí)現(xiàn)了板卡片間控制、信號(hào)流向與各模塊間的連接,并充分考慮了PCB布局布線的約束設(shè)計(jì)。最后,搭建了軟硬件測試環(huán)境對(duì)該平臺(tái)進(jìn)行了功能與性能上的測試分析。論文設(shè)計(jì)并實(shí)現(xiàn)的超便攜式軟件無線電平臺(tái)體積小、集成度與可重構(gòu)性高,可廣泛應(yīng)用于無線通信系統(tǒng)驗(yàn)證與高校通信教學(xué)與科研實(shí)驗(yàn),對(duì)軟件無線電的應(yīng)用演進(jìn)乃至無線通信的發(fā)展有著一定的意義。
[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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN92

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