三維隨機(jī)矩陣?yán)走_(dá)跳頻函數(shù)模型及應(yīng)用
電子技術(shù)應(yīng)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(fù)雜、惡劣的電磁環(huán)境中,雷達(dá)會(huì)受到干擾,造成無法識(shí)別到目標(biāo)或目標(biāo)丟失,跳頻是對(duì)付敵方或自然環(huán)境電子干擾的有效措施。跳頻方式有盲跳、偽隨機(jī)跳頻和自適應(yīng)跳頻,針對(duì)自適應(yīng)跳頻技術(shù),提出一種三維隨機(jī)矩陣自適應(yīng)跳頻模型,首先建立時(shí)間集矩陣、頻點(diǎn)干擾幅度集矩陣、可用頻點(diǎn)集矩陣,并在其基礎(chǔ)上生成三維隨機(jī)矩陣數(shù)學(xué)模型,然后給出實(shí)現(xiàn)方法,并結(jié)合實(shí)際工程應(yīng)用,驗(yàn)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(dá)的脈沖壓縮比,大幅提高了雷達(dá)電磁環(huán)境下的抗干擾能力,對(duì)提升雷達(dá)目標(biāo)識(shí)別能力具有重要意義。
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.
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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