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分布式小卫星多中心频率SAR实现宽域二维高分辨率成像

夏玉立 雷宏 黄瑶

夏玉立, 雷宏, 黄瑶. 分布式小卫星多中心频率SAR实现宽域二维高分辨率成像[J]. 电子与信息学报, 2009, 31(2): 501-504. doi: 10.3724/SP.J.1146.2007.01327
引用本文: 夏玉立, 雷宏, 黄瑶. 分布式小卫星多中心频率SAR实现宽域二维高分辨率成像[J]. 电子与信息学报, 2009, 31(2): 501-504. doi: 10.3724/SP.J.1146.2007.01327
Xia Yu-li, Lei Hong, Huang Yao. Using Multi-central Frequency Distributed Small Satellite SAR to Achieve Wide Swath and Two Dimensional High Resolution[J]. Journal of Electronics & Information Technology, 2009, 31(2): 501-504. doi: 10.3724/SP.J.1146.2007.01327
Citation: Xia Yu-li, Lei Hong, Huang Yao. Using Multi-central Frequency Distributed Small Satellite SAR to Achieve Wide Swath and Two Dimensional High Resolution[J]. Journal of Electronics & Information Technology, 2009, 31(2): 501-504. doi: 10.3724/SP.J.1146.2007.01327

分布式小卫星多中心频率SAR实现宽域二维高分辨率成像

doi: 10.3724/SP.J.1146.2007.01327

Using Multi-central Frequency Distributed Small Satellite SAR to Achieve Wide Swath and Two Dimensional High Resolution

  • 摘要: 分布式小卫星SAR能够打破传统单星SAR测绘带宽和方位分辨率的矛盾。该文分析了一种沿航向排列分布式小卫星宽测绘带二维高分辨率成像技术,每颗卫星同时发射接收不同频率的线性调频信号,先分别在每个子带解方位多普勒模糊,并将方位多普勒中心频率调整至零频,然后在距离向进行子带拼接得到大带宽的线性调频信号从而得到高的距离向分辨率。此外,这种多发多收的工作方式还增加了系统平均发射功率,提高了信噪比。
  • Li Z F, Bao Z, Wang H Y, and Liao G S. Performanceimprovement for constellation SAR using signal processingtechniques[J].IEEE Trans. on Aerospace and ElectronicSystems.2006, 42(2):436-452[2]Li Z F and Bao Z. A novel approach for wide-swath andhigh-resolution SAR image generation from distributed smallspaceborne SAR systems. International Journal of RemoteSensing, 2006, 27(5): 1015-1033.[3]Xing M D, Li Z F, Bao Z, and Liao G S. Doppler ambiguityresolving in distributed microsatellites radar imaging.Chinese of Journal Electronics, 2005, 14(4): 721-726.[4]Li Z F, Wang H Y, Tao S, and Bao Z. Generation ofwide-swath and high-resolution SAR images frommultichannel small spaceborne SAR systems[J].IEEEGeoscience and Remote Sensing Letters.2005, 2(1):82-86[5]闫鸿慧, 王岩飞, 于海锋, 李俐, 一种基于距离补偿的分布式小卫星双基SAR 成像方法. 电子与信息学报, 2005, 27(5):771-774.[6]Lord R T and Inggs M R. High range resolution SARprocessing using stepped-frequencies[J].Proc. IEEE GeoscienceRemote Sensing Symp., IGARSS97, Singapore, August.1997,1:490-492[7]Lord R T and Inggs M R. High range resolution radar usingnarrowband linear chirps offset in frequency. Proc. IEEESouth Africa Symp. on Communications and SignalProcessing, COMSIG'97, Grahamstown,, September 1997:9-12.[8]Yan H H, Wang Y F, Yu H F, and Li L. Distributed satellitesSAR high resolution imaging via spectral synthesis[J].Journalof Electronics Information Technology.2005, 27(5):771-774
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出版历程
  • 收稿日期:  2007-08-15
  • 修回日期:  2008-02-01
  • 刊出日期:  2009-02-19

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