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三维随机矩阵雷达跳频函数模型及应用
电子技术应用 2023年7期
李海波,孙卫,张哲瑞
(南京电子技术研究所, 江苏 南京210039)
摘要: 在复杂、恶劣的电磁环境中,雷达会受到干扰,造成无法识别到目标或目标丢失,跳频是对付敌方或自然环境电子干扰的有效措施。跳频方式有盲跳、伪随机跳频和自适应跳频,针对自适应跳频技术,提出一种三维随机矩阵自适应跳频模型,首先建立时间集矩阵、频点干扰幅度集矩阵、可用频点集矩阵,并在其基础上生成三维随机矩阵数学模型,然后给出实现方法,并结合实际工程应用,验证了算法的有效性。结果表明,该模型在一定程度上提高了雷达的脉冲压缩比,大幅提高了雷达电磁环境下的抗干扰能力,对提升雷达目标识别能力具有重要意义。
中图分类号:TN95
文献标志码:A
DOI: 10.16157/j.issn.0258-7998.233815
中文引用格式: 李海波,孙卫,张哲瑞. 三维随机矩阵雷达跳频函数模型及应用[J]. 电子技术应用,2023,49(7):126-129.
英文引用格式: Li Haibo,Sun Wei,Zhang Zherui. Three dimensional random matrix radar frequency hopping function model and its application[J]. Application of Electronic Technique,2023,49(7):126-129.
Three dimensional random matrix radar frequency hopping function model and its application
Li Haibo,Sun Wei,Zhang Zherui
(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)
Abstract: In complex and harsh electromagnetic environment, radar will be interfered, resulting in unrecognizable target or target loss. Frequency hopping is an effective measure to deal with electronic interference from enemy or natural environment. Frequency hopping methods include blind hopping, pseudo-random frequency hopping and adaptive frequency hopping. Aiming at adaptive frequency hopping technology, a three-dimensional random matrix adaptive frequency hopping algorithm is proposed. Firstly, the time set matrix, the frequency point interference amplitude set matrix, and the available frequency point set matrix are established. On the basis of these, the three-dimensional random matrix mathematical model is generated, and then the implementation method is given. Combined with practical engineering applications, the effectiveness of the algorithm is verified. The results show that the algorithm improves the pulse compression ratio of radar to a certain extent, greatly improves the anti-jamming ability of radar in electromagnetic environment, and is of great significance to improve the radar target recognition ability.
Key words : random matrix;frequency hopping;available frequency dots

0 引言

在当今的战场环境下,电磁对抗直接决定着战争胜利的砝码。在电磁对抗中,雷达首当其冲,成为被干扰的首要目标。如何在复杂、恶劣的电磁环境中生存,雷达设计师们苦心钻研出很多措施和方法。其中,跳频是对付敌方或自然环境电子干扰的有效措施。跳频技术有盲跳、伪随机跳频和自适应跳频,这些跳频技术都能在一定程度上让雷达得到较大的脉冲压缩比,提高雷达距离、方位、俯仰的分辨率,还能在多雷达协同工作时,人为地控制它们之间的相互干扰,从而大大增强雷达的抗干扰能力。本文研究出一种三维随机矩阵自适应跳频算法,并进行数学建模,为从事跳频研究的设计师提供一个新的思路,并结合实际工程应用,在一定程度上让雷达得到较大的脉冲压缩比。




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作者信息:

李海波,孙卫,张哲瑞

(南京电子技术研究所, 江苏 南京210039)


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