一种新型X波段微波功率放大器监控系统的设计

发布时间：2018-05-14 19:29

本文选题：微波功率放大器 + 监控系统　；参考：《东南大学》2015年硕士论文

【摘要】：在微波系统中,微波功率放大器承担着心脏的作用,其性能的优劣直接制约着雷达、电子对抗、通信以及数字电视发射机等系统的发展。监控系统作为整个微波功率放大器的神经中枢,担负着放大器工作状态和技术参数的监视、调节、控制和保护的重任,且放大器设备的产品化、模块化、通用化更离不开监控系统的灵活控制。因此,微波功率放大器监控系统的研究和设计是重要且具现实意义的。目前市面上的放大器设备输出模式普遍单一,当需多种模式的输出时,则需多台放大器设备,尤其在做空间实验时,需要多种类型的微波源对环境进行模拟,使用传统的微波功率放大器,需要多台设备,操作繁琐,控制不方便,占用空间大。针对此种情况,本文设计了一种用于新型多功能微波功率放大器的监控系统,通过该监控系统的合理设计可使微波功率放大器工作于三种输出模式,即脉冲模式、连续波模式和分时输出模式,使得一台微波功率放大器实现多台放大器的功能,且创新的实现了连续波和脉冲的分时输出,使得输出波形更加多样化。论文首先阐述了课题研究的背景与意义,分析了国内外微波功率放大器监控系统的研究和发展现状。随后结合微波功率放大器及其监控系统的结构特点和功能需求,分析了系统实现多模式输出的控制方法,确定了基于DSP与CPLD相结合的控制方案。其次,本文重点从系统的硬件设计和软件设计两个方面对所设计的微波功率放大器监控系统进行了详细介绍。根据实际的电路信号特点以及电路板的设计要求将系统硬件设计分为控制板、模拟板和背板三个模块并分别进行设计。系统的软件则是采用模块化设计思想,完成了人机交互界面、通信协议,模拟量采集、存储器读写等设计。最后,对所设计的监控系统进行了现场测试,测试结果表明本文设计的监控系统能有效地实现对微波功率放大器的控制与保护。
[Abstract]:In microwave system, microwave power amplifier plays the role of heart, and its performance directly restricts the development of radar, electronic countermeasure, communication and digital TV transmitter. As the nerve center of the whole microwave power amplifier, the monitoring system is responsible for monitoring, regulating, controlling and protecting the amplifier's working state and technical parameters. The generalization can not do without the flexible control of the monitoring system. Therefore, the research and design of microwave power amplifier monitoring system is important and practical significance. At present, the output mode of amplifiers on the market is generally single. When the output of multiple modes is required, many amplifiers are needed, especially in space experiments, and many types of microwave sources are needed to simulate the environment. The traditional microwave power amplifier needs many equipments, the operation is tedious, the control is not convenient, and the space is large. In this paper, a monitoring system for a new type of multi-functional microwave power amplifier is designed. Through the reasonable design of the monitoring system, the microwave power amplifier can work in three output modes, namely, pulse mode. The continuous wave mode and time-sharing output mode make one microwave power amplifier realize the function of multiple amplifiers, and the time-sharing output of continuous wave and pulse is innovatively realized, which makes the output waveform more diversified. Firstly, the background and significance of the research are described, and the research and development of microwave power amplifier monitoring system at home and abroad are analyzed. Then combined with the structure characteristics and functional requirements of microwave power amplifier and its monitoring system, the control method of multi-mode output is analyzed, and the control scheme based on DSP and CPLD is determined. Secondly, this paper introduces the microwave power amplifier monitoring system in detail from two aspects: hardware design and software design. According to the characteristics of the actual circuit signal and the design requirements of the circuit board, the hardware design of the system is divided into three modules: control board, analog board and backplane. The software of the system adopts the idea of modular design, and completes the design of man-machine interface, communication protocol, analog acquisition, memory reading and writing, etc. Finally, the field test of the designed monitoring system is carried out. The test results show that the control and protection of microwave power amplifier can be realized effectively by the monitoring system designed in this paper.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN722.75;TP277

【相似文献】