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一種捷變頻聯(lián)合Hough變換的抗密集假目標干擾算法

全英匯 陳俠達 阮鋒 高霞 李亞超 邢孟道

全英匯, 陳俠達, 阮鋒, 高霞, 李亞超, 邢孟道. 一種捷變頻聯(lián)合Hough變換的抗密集假目標干擾算法[J]. 電子與信息學報, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010
引用本文: 全英匯, 陳俠達, 阮鋒, 高霞, 李亞超, 邢孟道. 一種捷變頻聯(lián)合Hough變換的抗密集假目標干擾算法[J]. 電子與信息學報, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010
Yinghui QUAN, Xiada CHEN, Feng RUAN, Xia GAO, Yachao LI, Mengdao XING. An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010
Citation: Yinghui QUAN, Xiada CHEN, Feng RUAN, Xia GAO, Yachao LI, Mengdao XING. An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010

一種捷變頻聯(lián)合Hough變換的抗密集假目標干擾算法

doi: 10.11999/JEIT190010
基金項目: 國家自然科學基金(61303035, 61772397),中央高?;究蒲袠I(yè)務(wù)費專項;西安電子科技大學研究生創(chuàng)新基金
詳細信息
    作者簡介:

    全英匯:男,1981年生,博士,教授,研究方向為雷達實時信號處理

    陳俠達:男,1995年生,碩士生,研究方向為雷達信號處理

    阮鋒:男,1980年生,碩士,研究方向為雷達信號處理

    高霞:女,1996年生,碩士生,研究方向為雷達信號處理

    李亞超:男,1981年生,博士,教授,研究方向為雷達成像和實時信號處理

    邢孟道:男,1975年生,博士,教授,研究方向為SAR/ISAR成像、動目標檢測等

    通訊作者:

    全英匯 yhquan@mail.xidian.edu.cn

  • 中圖分類號: TN957.52; TN974

An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform

Funds: The National Natural Science Foundation of China(61303035, 61772397), The Fundamental Research Funds for the Central University; The Innovation Fund of Xidian University
  • 摘要: 轉(zhuǎn)發(fā)式密集假目標干擾通過在距離維上產(chǎn)生多個虛假目標,擾亂雷達對真實目標的檢測與識別。由于虛假回波信號與真實信號高度相關(guān),雷達很難對其進行有效識別和抑制。而捷變頻雷達通過隨機改變發(fā)射相鄰脈沖的載頻,大大提高了雷達的低截獲和抗干擾能力。但是捷變頻雷達不能完全消除干擾,部分目標回波脈沖可能被干擾淹沒,無法很好地完成相參積累和目標檢測。針對上述問題,該文提出捷變頻聯(lián)合Hough變換的抗干擾方法,首先利用脈間頻率捷變技術(shù)規(guī)避大部分窄帶瞄準和欺騙式干擾;然后針對干擾信號時間上的不連續(xù)特性,通過Hough變換和峰值提取進行干擾識別與抑制;最終,針對捷變頻與傳統(tǒng)動目標檢測(MTD)不兼容問題,通過稀疏重構(gòu)完成目標的檢測。仿真與實際雷達和干擾機對抗實驗表明,該方法可以獲得良好的抗干擾性能和目標檢測性能。
  • 圖  1  基于Hough變換的抗干擾方法流程圖

    圖  2  未受干擾與進行干擾抑制前后檢測概率隨信噪比變化的關(guān)系

    圖  3  檢測概率隨干信比變化的關(guān)系

    圖  4  PD雷達處理結(jié)果

    圖  5  干擾抑制前后捷變頻處理結(jié)果對比圖

    表  1  雷達工作及目標參數(shù)

    指標參數(shù)取值指標參數(shù)取值
    脈沖寬度4 μs脈沖重復頻率2.5 kHz
    信號帶寬24 MHz采樣頻率48 MHz
    脈沖組個數(shù)64 個初始載頻10 GHz
    跳頻總數(shù)100 個步進帶寬20 MHz
    目標距離4 km目標速度2 km/s
    下載: 導出CSV
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出版歷程
  • 收稿日期:  2019-01-07
  • 修回日期:  2019-05-08
  • 網(wǎng)絡(luò)出版日期:  2019-05-24
  • 刊出日期:  2019-11-01

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