电子对抗策略分析建模与仿真研究

发布时间：2018-05-25 17:34

本文选题：雷达对抗 + 电子对抗策略　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：面对战争的高度信息化趋势,雷达对抗工作对智能干扰决策系统提出了更高的要求。干扰决策必须以干扰盈利矩阵为基础,但目前干扰盈利矩阵的获取缺乏精确度和说服力,难以指导实际作战。本文针对目前智能干扰决策系统面临的问题,分析和研究了电子对抗策略的模型建立。首先,本文分析了雷达反对抗技术中的有关天线抗干扰、发射机抗干扰、接收机抗干扰和信号处理抗干扰的作用原理。重点研究了雷达信号处理系统中的抗干扰技术,包括脉冲压缩、脉冲积累、杂波对消和多普勒滤波器组。以输入信号为线性调频信号为例,对该处理过程进行了仿真实现。并总结了各类反对抗技术的适用范围。其次,本文介绍了雷达对抗技术中的遮盖式干扰的噪声调制干扰,仿真了噪声调制干扰的信号形式。介绍了测距、测角、测速雷达的测量原理和方法,在此基础上分析了这些原理和方法各自对应的干扰样式。仿真了距离、角度、速度欺骗的多种干扰样式,并总结了各类雷达对抗技术适用范围。最后,本文阐述了遮盖式干扰和欺骗式干扰的效果度量标准,分析和推导了遮盖式干扰中对射频噪声、噪声调幅干扰、噪声调频干扰、噪声调相干扰经过脉冲压缩、脉冲积累、杂波对消、多普勒滤波器组等信号处理方法前后干信比的变化。按照测距、测角、测向对应的欺骗性干扰样式对雷达受欺骗概率的影响因素进行了分析,在此基础上讨论了某些欺骗干扰的交叉干扰效果。仿真了遮盖式干扰经过雷达信号处理的过程,并绘制了干信比的变化曲线以及检测概率曲线,仿真结果表明,信号处理过程中的抗干扰方法对干扰的抑制程度是可量化的,该量化值为干扰功率的设置提供重要依据。
[Abstract]:In the face of the highly information-based trend of war, radar countermeasures put forward higher requirements for intelligent jamming decision systems. The interference decision must be based on the interference profit matrix, but the acquisition of the interference profit matrix lacks accuracy and persuasion, so it is difficult to guide the actual operation. Aiming at the problems faced by intelligent jamming decision system, this paper analyzes and studies the model building of electronic countermeasure strategy. Firstly, the principle of antenna anti-jamming, transmitter anti-jamming, receiver anti-jamming and signal processing anti-jamming are analyzed. The anti-jamming techniques in radar signal processing system are mainly studied, including pulse compression, pulse accumulation, clutter cancellation and Doppler filter bank. Taking the input signal as a linear frequency modulation signal as an example, the process is simulated. The application scope of all kinds of anti-resistance technology is summarized. Secondly, this paper introduces the noise modulation jamming in the radar countermeasure technology, and simulates the signal form of the noise modulation jamming. The measurement principles and methods of ranging, angle and velocity-measuring radar are introduced, and the corresponding jamming patterns of these principles and methods are analyzed. The jamming patterns of range, angle and speed deception are simulated, and the applicable range of radar countermeasure technology is summarized. Finally, this paper describes the measurement criteria of the effects of shaded jamming and deceptive jamming, and analyzes and deduces the effects of shaded jamming on RF noise, noise amplitude modulation interference, noise frequency modulation interference, noise phase modulation interference through pulse compression and pulse accumulation. Clutter cancellation, Doppler filter banks and other signal processing methods before and after the change of dry signal ratio. According to the deceptive jamming patterns of ranging, angle and direction finding, the factors affecting the deceptive probability of radar are analyzed, and the cross-jamming effects of some deceptive jamming are discussed. The process of covering jamming is simulated by radar signal processing, and the variation curve of dry signal ratio and the detection probability curve are drawn. The simulation results show that the degree of interference suppression by the anti-jamming method in signal processing is quantifiable. The quantization value provides an important basis for the setting of interference power.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN97

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