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基于時(shí)分MIMO的地基雷達(dá)高分辨率成像研究

蔣留兵 楊濤 車?yán)?/a>

蔣留兵, 楊濤, 車?yán)? 基于時(shí)分MIMO的地基雷達(dá)高分辨率成像研究[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1055-1063. doi: 10.11999/JEIT150905
引用本文: 蔣留兵, 楊濤, 車?yán)? 基于時(shí)分MIMO的地基雷達(dá)高分辨率成像研究[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1055-1063. doi: 10.11999/JEIT150905
JIANG Liubing, YANG Tao, CHE Li. Study on High-resolution Imaging of Ground-based MIMO Radar Based on Time-division Multiplexing[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1055-1063. doi: 10.11999/JEIT150905
Citation: JIANG Liubing, YANG Tao, CHE Li. Study on High-resolution Imaging of Ground-based MIMO Radar Based on Time-division Multiplexing[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1055-1063. doi: 10.11999/JEIT150905

Study on High-resolution Imaging of Ground-based MIMO Radar Based on Time-division Multiplexing

Funds: 

The National Natural Science Foundation of China (61561010), Guangxi Natural Science Foundation (2013- GXNSFAA019323), Guangxi Scientific Research and Technological Development Project (guikegong 14122006-6), Guangxi Department of Education Research Project (KY2015LX096), Project of Guangxi Key Laboratory of Wireless Broadband Communications and Signal Processing Director Foundation (GXKL061506)

  • 摘要: 基于時(shí)分多輸入多輸出(MIMO)的地基雷達(dá)成像有許多很好的應(yīng)用價(jià)值,比如替代合成孔徑雷達(dá)成像在山體滑坡監(jiān)測(cè)方面的應(yīng)用。針對(duì)基于時(shí)分MIMO的地基雷達(dá)高效高分辨率成像,該文提出一種基于逆傅里葉變換脈沖壓縮和波束形成的成像算法。雷達(dá)通過步進(jìn)頻連續(xù)波技術(shù)獲得高距離向分辨率,利用MIMO技術(shù)獲得高方位向分辨率。通過逆傅里葉變換法實(shí)現(xiàn)雷達(dá)數(shù)據(jù)距離向壓縮,采用波束形成算法實(shí)現(xiàn)雷達(dá)數(shù)據(jù)方位向壓縮。同時(shí)該算法還針對(duì)MIMO天線陣列所引起的回波信號(hào)相位不連續(xù)問題進(jìn)行了適當(dāng)?shù)男U诒3炙惴ǜ咝缘耐瑫r(shí)提高了成像質(zhì)量。根據(jù)真實(shí)的山體滑坡監(jiān)測(cè)成像場(chǎng)景參數(shù),通過數(shù)值仿真驗(yàn)證了該成像算法的可行性,應(yīng)用在山體滑坡監(jiān)測(cè)上理論效果良好。
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出版歷程
  • 收稿日期:  2015-07-30
  • 修回日期:  2016-01-20
  • 刊出日期:  2016-05-19

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