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基于调频连续波信号的圆弧式合成孔径雷达成像方法 被引量:7

Imaging Algorithm for Arc Synthetic Aperture Radar Using Frequency Modulated Continuous Wave
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摘要 圆弧式合成孔径雷达是一种对特定地区持续监测的新模式雷达,具有分辨率高,观测范围广,重访周期短等特点,适合对特定地区的形变监测以及对塌方、滑坡等灾害的预警。针对圆弧式合成孔径雷达特殊的运动形式,该文提出了一种新的用于调频连续波体制Arc-SAR成像的2维频域算法。首先推导了Arc-SAR的信号模型,然后提出了在满足转动机械臂长远小于目标最短斜距的情况下使用2维频域算法来聚焦信号,之后分析了算法误差。该算法可以在假设条件下对目标准确聚焦,并具有计算速度快等优点。最后使用仿真和实测数据验证了算法的有效性。 Arc Synthetic Aperture Radar (Arc-SAR) is a new operation-mode radar that is suitable for wide observation in certain areas. With its high resolution, wide observation area, and short repetition visit period, Arc-SAR is widely used in monitoring deformation measurements, landslides, and natural hazards. Because of the special movement of Arc-SAR, the BackproPagation Algorithm (BPA) is widely used in its image processing. Here~ we propose a novel two-dimensional frequency domain algorithm to process an Arc-~AR signal. First, we derive a signal model of Arc-SAR based on that of frequency-modulated continuous-wave radar. Next, because the length of the arm is far shorter than the distance of the antenna to the target, the signal can be processed in a 2D frequency domain. Finally, we analyze the error of the frequency method used. This algorithm has the advantages of high computation speed and accuracy. The simulation and experimental data results confirm the effectiveness and validity of the proposed method.
出处 《雷达学报(中英文)》 CSCD 2016年第4期425-433,共9页 Journal of Radars
基金 国家自然科学基金(61172122)~~
关键词 圆弧式合成孔径雷达 调频连续波 2维频域算法 Arc Synthetic Aperture Radar (Arc-SAR) Frequency-Modulated Continuous Wave (FMCW) Twodimensional frequency domain algorithms
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  • 1Klausing H and Keydel W.Feasibility of a synthetic aperture radar with rotating antennas(ROSAR)[C].Proceedings of the IEEE International Radar Conference,Arlington,Va,1990:51-56. 被引量:1
  • 2Lee H,Lee J H,Kim K E,et al.Development of a truck-mounted arc-scanning synthetic aperture radar[J].IEEE Transactions on Geoscience and Remote Sensing,2014,52(5):2773-2779. 被引量:1
  • 3Ali F,Urban A,and Vossick M.A high resolution 2D omnidirectional synthetic aperture radar scanner at K band[C].Proceedings of the 7th European Radar Conference,London,2010:503-506. 被引量:1
  • 4Bara M,Sagues L,Paniagua F,et al.High-speed focusingalgorithm for circular synthetic aperture radar(C-SAR)[J].Electronics Letters,2000,36(9):828-830. 被引量:1
  • 5Kreitmair-Steck W,Klausing H,Wolframm A P,et al.Heliradar-a synthetic aperture radar with rotating antennas[C].Proceedings of the European Microwave Conference,Madrid,Spain,1993:972-974. 被引量:1
  • 6Yang J G,Huang X T,Zhou Z M,et al.Image formation combined with synthetic bandwidth method for SAR with ultra-high resolution[C].Proceedings of the International Radar Conference,Bordeaux,France,2009:384-389. 被引量:1
  • 7Yuan H T,Cheng Z,Wen S L,et al.Study on radar target imaging and velocity measurement simultaneously based on step frequency waveforms[C].Asian and Pacific Conference on Synthetic Aperture Raclar,Huang shan,China,2007:404-407. 被引量:1
  • 8Yang dun-gang,Xiao Tao,din Tian,et al.Synthetic aperture radar imaging using stepped frequency waveform[J].IEEE Transactions on Geoscience Remote Sensing,2012,50(5):2026-2036. 被引量:1
  • 9Cumming I G,Wong F H.洪文,胡东辉,等译.合成孔径雷达成像-算法与实验[M].北京:电子工业出版社,2007:219-226. 被引量:1
  • 10孙兵周,荫清,陈杰,李春升.广域观测圆轨迹环扫SAR成像模式研究[J].电子与信息学报,2008,30(12):2805-2808. 被引量:20

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