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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。
關(guān)鍵詞: 随机矩阵 跳频 可用频点
中圖分類號(hào):TN95
文獻(xiàn)標(biāo)志碼:A
DOI: 10.16157/j.issn.0258-7998.233815
中文引用格式: 李海波,孫衛(wèi),張哲瑞. 三維隨機(jī)矩陣?yán)走_(dá)跳頻函數(shù)模型及應(yīng)用[J]. 電子技術(shù)應(yīng)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

在當(dāng)今的戰(zhàn)場(chǎng)環(huán)境下,電磁對(duì)抗直接決定著戰(zhàn)爭(zhēng)勝利的砝碼。在電磁對(duì)抗中,雷達(dá)首當(dāng)其沖,成為被干擾的首要目標(biāo)。如何在復(fù)雜、惡劣的電磁環(huán)境中生存,雷達(dá)設(shè)計(jì)師們苦心鉆研出很多措施和方法。其中,跳頻是對(duì)付敵方或自然環(huán)境電子干擾的有效措施。跳頻技術(shù)有盲跳、偽隨機(jī)跳頻和自適應(yīng)跳頻,這些跳頻技術(shù)都能在一定程度上讓雷達(dá)得到較大的脈沖壓縮比,提高雷達(dá)距離、方位、俯仰的分辨率,還能在多雷達(dá)協(xié)同工作時(shí),人為地控制它們之間的相互干擾,從而大大增強(qiáng)雷達(dá)的抗干擾能力。本文研究出一種三維隨機(jī)矩陣自適應(yīng)跳頻算法,并進(jìn)行數(shù)學(xué)建模,為從事跳頻研究的設(shè)計(jì)師提供一個(gè)新的思路,并結(jié)合實(shí)際工程應(yīng)用,在一定程度上讓雷達(dá)得到較大的脈沖壓縮比。




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作者信息:

李海波,孫衛(wèi),張哲瑞

(南京電子技術(shù)研究所, 江蘇 南京210039)


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