分布式MIMO雷达非完备信息高效干扰策略与干扰方法研究
发布时间：2018-11-15 20:22
【摘要】：面对不断恶化的电磁环境,多输入多输出(MIMO)雷达的观念应运而生。MIMO雷达因其采用多发多收的工作模式,具有抗截获能力强、布阵方式灵活、抗干扰能力强等诸多优点,受到了更多地关注。由于MIMO雷达的诸多优点,导致其可能成为未来战争的主流,因此国内外已开始研究针对这种新体制雷达的对抗方法。首先根据MIMO体制雷达的结构特点,研究其可能存在的易受干扰薄弱环节,之后针对这些薄弱环节,采取相应的干扰策略以在侦察条件不完备的情况下实现对MIMO雷达的高效干扰。本文主要工作是在侦察信息非完备的情况下实现MIMO雷达的干扰。首先介绍了该新体制雷达的结构特点,之后从MIMO雷达信号处理流程出发,分析了分布式MIMO雷达存在的易受干扰薄弱环节及非完备信息的特点。在此基础上,研究了针对分布式MIMO雷达非完备信息的干扰方法,通过理论推导和仿真结果证明了各干扰方法的有效性。本文的主要研究内容如下:1.研究分布式MIMO雷达的结构特点和信号处理流程,比较分布式MIMO雷达与集中式MIMO雷达的区别,为分析其易受干扰薄弱环节奠定理论基础。2.分析分布式MIMO雷达存在的弱点,如长时间非相参积累,发射信号功率低,分辨能力依赖发射波形正交性,接收端需要进行数据融合等,为进一步研究分布式MIMO雷达干扰方法提供思路。3.分析分布式MIMO雷达在信号调制类型信息不完备的情况下,如何制定有效的干扰策略及具体干扰方法的实施。研究了多信号干扰和压制性干扰方法,并仿真验证其干扰效果。4.分析分布式MIMO雷达在信号载波数信息不完备的情况下,如何制定有效的干扰策略及具体干扰方法的实施。研究了部分载波的压制干扰和欺骗干扰对分布式MIMO雷达的影响,并提出了分布式干扰和距离欺骗组合干扰,并对其进行仿真验证。5.分析分布式MIMO雷达在信号载频、带宽等信息不完备的情况下,如何制定有效的干扰策略及具体干扰方法的实施。主要研究了分阶段组合干扰,并对其进行仿真验证。
[Abstract]:In the face of the deteriorating electromagnetic environment, the concept of multi-input and multi-output (MIMO) radar emerges as the times require. MIMO radar has many advantages, such as strong anti-interception ability, flexible array arrangement, strong anti-jamming ability and so on. Got more attention. Due to many advantages of MIMO radar, it may become the mainstream of future war. Therefore, the countermeasures against this new radar system have been studied at home and abroad. According to the structural characteristics of MIMO radar, the possible weak links of MIMO radar are studied, and then the corresponding jamming strategy is adopted to realize the efficient jamming of MIMO radar under the condition of incomplete reconnaissance conditions. The main work of this paper is to realize the jamming of MIMO radar with incomplete reconnaissance information. This paper first introduces the structural characteristics of the new radar system, and then analyzes the weak links of the distributed MIMO radar and the characteristics of incomplete information based on the signal processing flow of the MIMO radar. On this basis, the jamming methods for incomplete information of distributed MIMO radar are studied, and the effectiveness of each jamming method is proved by theoretical derivation and simulation results. The main contents of this paper are as follows: 1. This paper studies the structural characteristics and signal processing flow of distributed MIMO radar, compares the difference between distributed MIMO radar and centralized MIMO radar, and lays a theoretical foundation for analyzing the weak links of distributed MIMO radar vulnerable to jamming. 2. The weakness of distributed MIMO radar is analyzed, such as long time non-coherent accumulation, low power of transmitting signal, dependence of resolution on orthogonality of transmitting waveform, data fusion at receiving end, etc. For further study of distributed MIMO radar jamming methods. 3. This paper analyzes how to make effective jamming strategy and how to implement the jamming method of distributed MIMO radar under the condition of incomplete signal modulation type information. The methods of multi-signal jamming and suppressing jamming are studied, and the jamming effect is verified by simulation. 4. This paper analyzes how to make effective jamming strategy and how to implement the concrete jamming method of distributed MIMO radar under the condition of incomplete signal carrier number information. The influence of partial carrier suppression jamming and deceptive jamming on distributed MIMO radar is studied, and the combined jamming of distributed jamming and range deception is proposed. This paper analyzes how to formulate an effective jamming strategy and how to implement the jamming method of distributed MIMO radar under the condition of incomplete signal carrier frequency, bandwidth and other information. This paper mainly studies the phased combined interference, and carries on the simulation verification to it.
【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】：TN974
本文编号：2334349
[Abstract]:In the face of the deteriorating electromagnetic environment, the concept of multi-input and multi-output (MIMO) radar emerges as the times require. MIMO radar has many advantages, such as strong anti-interception ability, flexible array arrangement, strong anti-jamming ability and so on. Got more attention. Due to many advantages of MIMO radar, it may become the mainstream of future war. Therefore, the countermeasures against this new radar system have been studied at home and abroad. According to the structural characteristics of MIMO radar, the possible weak links of MIMO radar are studied, and then the corresponding jamming strategy is adopted to realize the efficient jamming of MIMO radar under the condition of incomplete reconnaissance conditions. The main work of this paper is to realize the jamming of MIMO radar with incomplete reconnaissance information. This paper first introduces the structural characteristics of the new radar system, and then analyzes the weak links of the distributed MIMO radar and the characteristics of incomplete information based on the signal processing flow of the MIMO radar. On this basis, the jamming methods for incomplete information of distributed MIMO radar are studied, and the effectiveness of each jamming method is proved by theoretical derivation and simulation results. The main contents of this paper are as follows: 1. This paper studies the structural characteristics and signal processing flow of distributed MIMO radar, compares the difference between distributed MIMO radar and centralized MIMO radar, and lays a theoretical foundation for analyzing the weak links of distributed MIMO radar vulnerable to jamming. 2. The weakness of distributed MIMO radar is analyzed, such as long time non-coherent accumulation, low power of transmitting signal, dependence of resolution on orthogonality of transmitting waveform, data fusion at receiving end, etc. For further study of distributed MIMO radar jamming methods. 3. This paper analyzes how to make effective jamming strategy and how to implement the jamming method of distributed MIMO radar under the condition of incomplete signal modulation type information. The methods of multi-signal jamming and suppressing jamming are studied, and the jamming effect is verified by simulation. 4. This paper analyzes how to make effective jamming strategy and how to implement the concrete jamming method of distributed MIMO radar under the condition of incomplete signal carrier number information. The influence of partial carrier suppression jamming and deceptive jamming on distributed MIMO radar is studied, and the combined jamming of distributed jamming and range deception is proposed. This paper analyzes how to formulate an effective jamming strategy and how to implement the jamming method of distributed MIMO radar under the condition of incomplete signal carrier frequency, bandwidth and other information. This paper mainly studies the phased combined interference, and carries on the simulation verification to it.
【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】：TN974
【引证文献】
相关硕士学位论文 前1条
1 姚君宇;MIMO雷达干扰策略与方法研究[D];电子科技大学;2018年
，本文编号：2334349
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