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基于高超聲速平臺(tái)前斜視多通道SAR-GMTI雜波抑制方法

王宇 曹運(yùn)合 齊晨 韓玖勝 劉玉濤

王宇, 曹運(yùn)合, 齊晨, 韓玖勝, 劉玉濤. 基于高超聲速平臺(tái)前斜視多通道SAR-GMTI雜波抑制方法[J]. 電子與信息學(xué)報(bào), 2020, 42(2): 458-464. doi: 10.11999/JEIT181002
引用本文: 王宇, 曹運(yùn)合, 齊晨, 韓玖勝, 劉玉濤. 基于高超聲速平臺(tái)前斜視多通道SAR-GMTI雜波抑制方法[J]. 電子與信息學(xué)報(bào), 2020, 42(2): 458-464. doi: 10.11999/JEIT181002
Yu WANG, Yunhe CAO, Chen QI, Jiusheng HAN, Yutao LIU. Multi-channel SAR-GMTI Clutter Suppression Method Based onHypersonic Platform Forward Squint[J]. Journal of Electronics & Information Technology, 2020, 42(2): 458-464. doi: 10.11999/JEIT181002
Citation: Yu WANG, Yunhe CAO, Chen QI, Jiusheng HAN, Yutao LIU. Multi-channel SAR-GMTI Clutter Suppression Method Based onHypersonic Platform Forward Squint[J]. Journal of Electronics & Information Technology, 2020, 42(2): 458-464. doi: 10.11999/JEIT181002

基于高超聲速平臺(tái)前斜視多通道SAR-GMTI雜波抑制方法

doi: 10.11999/JEIT181002
基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61771367),通信網(wǎng)信息傳輸與分發(fā)技術(shù)重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金(HHS19641X003)
詳細(xì)信息
    作者簡(jiǎn)介:

    王宇:男,1991年生,博士生,研究方向?yàn)楹铣煽讖嚼走_(dá)地面動(dòng)目標(biāo)檢測(cè)(SAR-GMTI)、空時(shí)自適應(yīng)處理(STAP)

    曹運(yùn)合:男,1978年生,教授、博士生導(dǎo)師,研究方向?yàn)槔走_(dá)信號(hào)處理,陣列信號(hào)處理,高速實(shí)時(shí)信號(hào)處理,DSP與FPGA開(kāi)發(fā)

    齊晨:女,1993年生,碩士生,研究方向?yàn)楹铣煽讖嚼走_(dá)地面動(dòng)目標(biāo)檢測(cè)(SAR-GMTI)

    韓玖勝:男,1994年生,博士生,研究方向?yàn)楹铣煽讖嚼走_(dá)地面動(dòng)目標(biāo)檢測(cè)(SAR-GMTI)、空時(shí)自適應(yīng)處理(STAP)

    通訊作者:

    曹運(yùn)合 cyh_xidian@163.com

  • 中圖分類號(hào): TN957.51

Multi-channel SAR-GMTI Clutter Suppression Method Based onHypersonic Platform Forward Squint

Funds: The National Natural Science Foundation of China (61771367), The science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory Foundation (HHS19641X003)
  • 摘要:

    針對(duì)高超聲速(HSV)平臺(tái)雷達(dá)系統(tǒng),該文提出一種基于高超聲速平臺(tái)前斜視多通道合成孔徑雷達(dá)地面動(dòng)目標(biāo)檢測(cè)(SAR-GMTI)雜波抑制方法。該方法先進(jìn)行時(shí)域距離走動(dòng)校正和距離壓縮,并補(bǔ)償距離向通道相位誤差實(shí)現(xiàn)距離向包絡(luò)對(duì)齊;然后再對(duì)方位多普勒擴(kuò)展的信號(hào)進(jìn)行3階線調(diào)頻傅里葉變換(CFT)壓縮,并補(bǔ)償方位向通道相位誤差實(shí)現(xiàn)方位向包絡(luò)對(duì)齊;接著在距離時(shí)域-方位CFT域利用數(shù)字波束形成(DBF)技術(shù)對(duì)雜波及其模糊分量置零進(jìn)行空時(shí)自適應(yīng)處理(STAP),從而可以有效抑制靜止雜波及其模糊分量并提取出無(wú)模糊的運(yùn)動(dòng)目標(biāo)回波信號(hào)。

  • 圖  1  高超聲速平臺(tái)前斜視多通道SAR-GMTI系統(tǒng)幾何模型

    圖  2  不同斜視角下的3階距離彎曲量結(jié)果圖

    圖  3  雜波抑制處理流程圖

    圖  4  不同傅里葉交換結(jié)果

    圖  5  雜波抑制結(jié)果

    圖  6  陣列天線方向圖

    表  1  仿真參數(shù)

    參數(shù)名稱載頻${f_{\rm{c}}}$斜視角平臺(tái)高度H中心斜距R距離分辨率信號(hào)多普勒帶寬重頻PRF平臺(tái)速度V相鄰?fù)ǖ篱g距d方位分辨率
    參數(shù)值10 GHz50°30 km60 km1 m1530 Hz554 Hz2380 m/s1.5 m1 m
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2018-11-01
  • 修回日期:  2019-04-20
  • 網(wǎng)絡(luò)出版日期:  2019-09-20
  • 刊出日期:  2020-02-19

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