宽载波频率大带宽超短波射频电路关键技术研究与验证

发布时间：2018-06-12 03:40

本文选题：宽载波 + 大带宽　；参考：《电子科技大学》2017年硕士论文

【摘要】：随着信息技术的快速发展,军队对通信安全的要求更为苛刻。30~512MHz战术电台作为战术通信系统的必要通信设备,是国家高度重视和重点发展的军事装备对象。论文根据当前国际战术电台射频电路的发展趋势,对宽载波频率(30~512MHz)大带宽(25k/2M/10MHz)超短波战术电台射频电路关键技术进行研究和实验验证。具体工作内容包括:第一,分析当前国内外战术电台的发展现状,对战术电台常用射频收发电路的架构进行介绍,并总结各自的优缺点。结合电台射频收发电路的发展趋势和课题战术电台的性能指标需求,最终确定选择零中频架构对战术电台系统的射频收发电路进行设计。第二,在分析射频电路主要指标的基础上,对射频电路进行总体和详细设计,主要包括收发电路的整体架构,收发电路关键性能的指标预算,以及收发电路关键模块、跳频滤波器、本振电路和其他辅助模块的详细设计实现。第三,搭建硬件测试平台,测试和验证射频电路的性能,包括滤波电路、本振电路、发射电路和接收电路。并对各测试结果进行分析,提出下一步工作规划建议。论文设计和实现了一款宽载波频率大带宽超短波战术电台射频电路。该射频电路频率覆盖范围30~512MHz,带宽分为25k、2M和10MHz,最大发射功率为5W,满足宽频带、大带宽、超短波、多通道、抗干扰和小型号等目标需求,对战术电台的研究发展具有重要的价值和意义。
[Abstract]:With the rapid development of information technology, military tactical radio station, as a necessary communication equipment of tactical communication system, is a highly valued and important object of military equipment. According to the development trend of radio frequency circuits in international tactical radio stations, this paper studies and verifies the key technologies of radio frequency circuits in the wide carrier frequency range of 30512MHz) with large bandwidth of 25k / 2M / 10MHz). The main contents of this paper are as follows: first, the development status of domestic and foreign tactical radio stations is analyzed, the structure of radio frequency transceiver circuits used in tactical radio stations is introduced, and their advantages and disadvantages are summarized. Combined with the development trend of radio frequency transceiver circuit and the requirement of performance index of tactical radio station, it is determined to design the radio frequency transceiver circuit of tactical radio station system with zero-intermediate frequency architecture. Secondly, on the basis of analyzing the main indexes of RF circuit, the overall and detailed design of RF circuit is carried out, including the whole structure of the transceiver circuit, the index budget of the key performance of the transceiver circuit, and the key module of the transceiver circuit. Frequency hopping filter, local oscillator circuit and other auxiliary modules are designed and implemented in detail. Thirdly, the hardware test platform is built to test and verify the performance of RF circuits, including filter circuit, local oscillator circuit, transmitting circuit and receiving circuit. And the analysis of the test results, put forward the next work planning suggestions. In this paper, we design and implement a radio frequency circuit of wide carrier frequency and large bandwidth ultrashort wave tactical radio station. The RF circuit has a frequency coverage range of 30 ~ 512MHz. the bandwidth is divided into 25kHz and 10MHz, and the maximum transmitting power is 5W, which meets the target requirements of wide band, large bandwidth, ultrashort wave, multi-channel, anti-jamming and small model, etc. It is of great value and significance to the research and development of tactical radio station.
【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】：TN924;TN710

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