基于单片机控制的多频点X波段频率源的设计与实现

发布时间：2018-02-04 08:18

  本文关键词： 频率源 ADF4106 锁相环　出处：《南京理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着无线电技术的发展应用和频率资源的紧张,频率源的频率越来越高,实现难度也越来越大。频率源是无线电系统实现高性能指标的关键部分之一,很多无线电系统的实现都直接或间接依赖于频率源的性能,对频率源的频谱纯度、精度、频率分辨率和转换时间等指标提出了越来越高的要求,推动了频率源技术的发展。本文设计的X波段频率源,采用以双模分频频率合成器为核心的锁相频率合成技术。首先介绍了课题背景和频率合成技术的国内外研究现状；其次介绍了锁相环原理和锁相环性能；结合项目技术要求,确定了项目方案和主要芯片,分析了项目的技术参数,设计了频率源的硬件电路和控制软件；最后分析了频率源的电磁兼容性,实现了工程应用。本文设计的X波段微波频率源,技术参数达到设计要求,能够满足接收装置的需求,具有独立的知识产权,为未来频率源的研发打下了坚实的基础。
[Abstract]:With the development and application of radio technology and the shortage of frequency resources, the frequency of the frequency source is becoming more and more high, and the realization of the frequency source is becoming more and more difficult. Frequency source is one of the key parts of the radio system to achieve the high performance index. Many radio systems are directly or indirectly dependent on the performance of the frequency source, the frequency source of the spectral purity, accuracy, frequency resolution and conversion time and other indicators put forward more and more high requirements. It promotes the development of frequency source technology. The X-band frequency source is designed in this paper. The phase-locked frequency synthesizer with dual-mode frequency divider as the core is adopted. Firstly, the background of the subject and the research status of frequency synthesizer at home and abroad are introduced. Secondly, the principle of PLL and the performance of PLL are introduced. According to the technical requirements of the project, the project scheme and main chips are determined, the technical parameters of the project are analyzed, and the hardware circuit and control software of the frequency source are designed. Finally, the electromagnetic compatibility of the frequency source is analyzed, and the engineering application is realized. The X-band microwave frequency source designed in this paper meets the design requirements, can meet the needs of the receiving device, and has independent intellectual property rights. For the future frequency source research and development laid a solid foundation.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN74
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本文编号：1489791