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三維隨機矩陣雷達跳頻函數(shù)模型及應用
電子技術(shù)應用 2023年7期
李海波,孫衛(wèi),張哲瑞
(南京電子技術(shù)研究所, 江蘇 南京210039)
摘要: 在復雜、惡劣的電磁環(huán)境中,雷達會受到干擾,造成無法識別到目標或目標丟失,跳頻是對付敵方或自然環(huán)境電子干擾的有效措施。跳頻方式有盲跳、偽隨機跳頻和自適應跳頻,針對自適應跳頻技術(shù),提出一種三維隨機矩陣自適應跳頻模型,首先建立時間集矩陣、頻點干擾幅度集矩陣、可用頻點集矩陣,并在其基礎上生成三維隨機矩陣數(shù)學模型,然后給出實現(xiàn)方法,并結(jié)合實際工程應用,驗證了算法的有效性。結(jié)果表明,該模型在一定程度上提高了雷達的脈沖壓縮比,大幅提高了雷達電磁環(huán)境下的抗干擾能力,對提升雷達目標識別能力具有重要意義。
關(guān)鍵詞: 隨機矩陣 跳頻 可用頻點
中圖分類號:TN95
文獻標志碼:A
DOI: 10.16157/j.issn.0258-7998.233815
中文引用格式: 李海波,孫衛(wèi),張哲瑞. 三維隨機矩陣雷達跳頻函數(shù)模型及應用[J]. 電子技術(shù)應用,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

在當今的戰(zhàn)場環(huán)境下,電磁對抗直接決定著戰(zhàn)爭勝利的砝碼。在電磁對抗中,雷達首當其沖,成為被干擾的首要目標。如何在復雜、惡劣的電磁環(huán)境中生存,雷達設計師們苦心鉆研出很多措施和方法。其中,跳頻是對付敵方或自然環(huán)境電子干擾的有效措施。跳頻技術(shù)有盲跳、偽隨機跳頻和自適應跳頻,這些跳頻技術(shù)都能在一定程度上讓雷達得到較大的脈沖壓縮比,提高雷達距離、方位、俯仰的分辨率,還能在多雷達協(xié)同工作時,人為地控制它們之間的相互干擾,從而大大增強雷達的抗干擾能力。本文研究出一種三維隨機矩陣自適應跳頻算法,并進行數(shù)學建模,為從事跳頻研究的設計師提供一個新的思路,并結(jié)合實際工程應用,在一定程度上讓雷達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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