《電子技術(shù)應(yīng)用》
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對(duì)相控陣?yán)走_(dá)自適應(yīng)旁瓣對(duì)消干擾技術(shù)研究
2020年電子技術(shù)應(yīng)用第12期
項(xiàng)正山,黃 全,唐 龍
桂林長(zhǎng)海發(fā)展有限責(zé)任公司,廣西 桂林541001
摘要: 自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)能夠有效對(duì)抗來自副瓣方向的有源干擾,在分析相控陣?yán)走_(dá)自適應(yīng)旁瓣對(duì)消工作原理基礎(chǔ)上,基于設(shè)計(jì)的輔助天線配置方案,針對(duì)干擾源相對(duì)雷達(dá)角度變化以及雷達(dá)天線方向圖差異,對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的對(duì)消性能進(jìn)行了系統(tǒng)全面仿真。仿真實(shí)驗(yàn)結(jié)果表明,多個(gè)單一極化干擾源和單個(gè)極化干擾源對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)分別干擾時(shí),閃爍干擾和極化干擾方法都存在干擾不理想的情況,因此,建議對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)實(shí)施旁瓣干擾時(shí),采用多點(diǎn)干擾源閃爍干擾和極化干擾復(fù)合的干擾策略。
中圖分類號(hào): TN95
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.200502
中文引用格式: 項(xiàng)正山,黃全,唐龍. 對(duì)相控陣?yán)走_(dá)自適應(yīng)旁瓣對(duì)消干擾技術(shù)研究[J].電子技術(shù)應(yīng)用,2020,46(12):144-150.
英文引用格式: Xiang Zhengshan,Huang Quan,Tang Long. Research on adaptive sidelobe cancellation technology of AESA[J]. Application of Electronic Technique,2020,46(12):144-150.
Research on adaptive sidelobe cancellation technology of AESA
Xiang Zhengshan,Huang Quan,Tang Long
Guilin Changhai Development Co.,Ltd.,Guilin 541001,China
Abstract: Adaptive sidelobe cancellation radar systems can effectively resist active jamming from the sidelobe direction. Based on the analysis of the operating principle of AESA adaptive sidelobe cancellation, on the base of auxiliary antenna configuration design, the cancellation performance of the adaptive sidelobe cancellation radar system was simulated systematically and comprehensively in view of the change of jamming source relative to radar angle and the difference of radar antenna pattern. The simulation results show that when multiple single polarization jamming sources and single polarization jamming source is used for jamming the adaptive sidelobe cancellation radar system respectively, the blinking jamming and polarization jamming are not ideal. Therefore, jamming combination of blinking jamming with multiple jamming sources and polarization jamming is advised as the sidelobe jamming strategy against adaptive sidelobe cancellation radar systems.
Key words : adaptive sidelobe cancellation;sidelobe jamming;polarization jamming;blinking jamming

0 引言

    隨著寬帶功率器件技術(shù)成熟與成本降低,多波束、相控陣干擾機(jī)進(jìn)一步提高了干擾機(jī)的輸出功率,僅采用低副瓣天線技術(shù)的傳統(tǒng)雷達(dá)在對(duì)抗旁瓣有源干擾方面,優(yōu)勢(shì)不再明顯,因此,現(xiàn)代雷達(dá)普遍采用了自適應(yīng)旁瓣對(duì)消技術(shù)(ASLC)來抑制干擾[1]。自適應(yīng)旁瓣對(duì)消技術(shù)是當(dāng)存在有源干擾時(shí),自適應(yīng)地修正輔助天線權(quán)值,使干擾信號(hào)在雷達(dá)主天線對(duì)應(yīng)接收通道輸出干擾信號(hào)功率最小,即在雷達(dá)主天線方向圖上表現(xiàn)為在干擾到達(dá)方向上形成零點(diǎn),從而抑制旁瓣方向的有源干擾[2]

    理論上多個(gè)單一極化干擾閃爍干擾和單個(gè)極化干擾源可以對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)實(shí)現(xiàn)干擾[3-6],通過干擾源快速角度變換和干擾源快速極化變換可有效破壞自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)中自適應(yīng)天線加權(quán)因子解算。然而,有關(guān)多個(gè)單一極化干擾源閃爍干擾和單個(gè)極化干擾源極化干擾對(duì)旁瓣自適應(yīng)對(duì)消系統(tǒng)的干擾對(duì)消效果定量研究報(bào)道較少,僅有的報(bào)道大多偏向于定性討論,而干擾源相對(duì)雷達(dá)角度變化以及雷達(dá)天線方向圖差異將直接對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的對(duì)消性能產(chǎn)生影響,因此,研究干擾源相對(duì)雷達(dá)角度變化和雷達(dá)天線方向圖差異對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的對(duì)消性能影響是十分必要的。

    本文系統(tǒng)全面地分析了自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的干擾信號(hào)對(duì)消原理,給出了多個(gè)單一極化干擾源閃爍干擾和單個(gè)極化干擾源可對(duì)抗自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的理論依據(jù)。根據(jù)相控陣輔助天線配置的基本原則,設(shè)計(jì)了輔助天線配置方案,在此基礎(chǔ)上,分析和研究了不同條件下兩種干擾手段對(duì)自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的對(duì)消干擾性能的影響程度,并提出多點(diǎn)干擾源閃爍干擾和極化干擾復(fù)合的干擾策略。此方法可有效規(guī)避兩種方法各自缺點(diǎn),是對(duì)抗自適應(yīng)旁瓣對(duì)消雷達(dá)系統(tǒng)的一個(gè)有效干擾方法。




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作者信息:

項(xiàng)正山,黃  全,唐  龍

(桂林長(zhǎng)海發(fā)展有限責(zé)任公司,廣西 桂林541001)

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