相控阵雷达抗干扰方法应用及实现

发布时间：2018-04-02 07:22

本文选题：大动态接收　切入点：干扰对消　出处：《电子科技大学》2017年硕士论文

【摘要】：随着现代装备技术的日益发展,战场上电磁干扰的形势越来越严峻。为了与时俱进,适应现代战场的复杂环境。现代雷达装备必须在原来所具备的性能基础上,切实提高抗干扰的能力,将理论转化为工程实际,以适应实时战场的需要。抗干扰能力是衡量雷达性能的主要标志之一,同时也作为整机系统设计的重要考虑。雷达面临的干扰一般不是单一的干扰方式,而是多种干扰组成的综合干扰。本文主要针对有源干扰进行分析,列举了多种主要的不同类型的干扰信号。雷达的抗干扰也必须要采用具有多种抗干扰措施的综合抗干扰技术。这样,在同一部装备上就拥有了较全面的抗干扰能力,使我们的产品能够适应时代和战场的需要。本文结合某中远程三坐标雷达,以工程实践为主要研究方法,完成了多种抗干扰技术的应用及实现。从工程实践的角度对多种抗干扰技术进行讨论。论文首先介绍了相控阵三坐标雷达的基本原理,系统基本组成及其抗干扰性能优势。详细介绍了大动态接收机、数字脉压、辅助通道、匿隐等技术的实现。深入分析和研究了天馈系统抗干扰技术的实现。以超外差接收机为基础,在接收分系统中实现了多种抗干扰技术。联合脉压系统和信号处理系统,进一步提高整机的抗干扰能力。利用多年来积累的工程实践经验,充分发挥目前的工艺技术水平。根据各抗干扰措施的技术要求,对各相关的分系统进行硬件上改进,或者在原来的硬件基础上增加一些硬件。在各抗干扰技术措施实现过程中,从整机的角度优化好各分系统,协调融合好各分系统。在原来的体制下采用了一些新的方法来实现技术指标。在多种抗干扰措施都实现以后,对多种抗干扰方法实现的效果进行分析。对部分抗干扰技术的实现效果采用仿真的方法介绍,部分技术采用录取目标的效果来介绍。抗干扰措施在工程上实现以后要,通过调试发挥出硬件的最佳效能。最终研究结果表明,本文所应用的抗干扰方法达到了很好的效果,使雷达的抗干扰性能得到了提高。
[Abstract]:With the development of modern technology and equipment, battlefield electromagnetic interference situation is more and more serious. In order to keep pace with the times, adapt to the complex environment of modern battlefield. Modern radar equipment must be in the original performance, and effectively improve the ability of anti interference, the theory into practice, in order to meet the needs of real-time battlefield interference. Ability is one of the main criteria for judging the radar performance, but also as an important consideration of the whole system design. The interference is generally not a single radar under jamming mode, but a variety of interference. This paper mainly consists of comprehensive interference for active interference analysis, enumerates several main different types of interference signals. The radar anti-jamming must also to adopt the comprehensive anti-jamming technology with a variety of anti-jamming measures. So, in the same department of equipment has a more comprehensive anti-jamming capability, so that Our products can meet the needs of the times and the battlefield. This combination of a remote three coordinate radar, the main research methods in engineering practice, the application and implementation of a variety of anti-jamming technology. To discuss a variety of anti-interference technology from the view of engineering practice. The paper firstly introduces the basic principle of phased array radar three coordinates. The basic composition and its anti-jamming performance advantages. Introduces dynamic receiver, digital pulse compression, auxiliary channel, realize the occult technology. In-depth analysis and study of the anti jamming technology of antenna system is realized. The super heterodyne receiver based on the receiving system achieve a variety of anti-jamming technologies combined with pulse compression system. And the signal processing system, further improve the anti-interference ability. The engineering practice experience accumulated over the years, give full play to the technological level at present. According to the For measures of anti-jamming technology, the hardware on the improvement of the related system, or add some hardware in the hardware based on the original. The anti interference technology measures in the process of implementation, optimization of each system from the angle of coordination fusion of every subsystem. Using some new methods in the original the system to achieve the technical index. After the anti interference measures are implemented in a variety of anti-interference methods, the effect was analyzed. The method to realize the effect of anti interference technology by simulation, the admission target technology to be introduced. The effect of anti interference measures in engineering later. Play the best performance through debugging hardware. The final results show that the anti-interference methods used in this paper to achieve good results, so that the anti jamming performance of radar has been improved.

【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】：TN958.92

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