基于距離向多孔徑接收的寬測(cè)繪帶SAR成像方法的研究
A Research on the Multi-aperture Wide-Swath SAR Imaging Method
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摘要: 該文提出了一種新的基于距離向多孔徑接收寬測(cè)繪帶合成孔徑雷達(dá)(SAR)成像方法。首先對(duì)這種成像方法進(jìn)行了嚴(yán)格的論證,并證明了運(yùn)算中的加權(quán)矩陣為良態(tài)矩陣,然后分析了這種成像方法的計(jì)算量,討論了這種寬測(cè)繪帶SAR的信噪比,最后給出了仿真結(jié)果。
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關(guān)鍵詞:
- 寬測(cè)繪帶合成孔徑雷達(dá); 成像方法; 多接收孔徑雷達(dá)
Abstract: A new imaging method is proposed for multi-aperture wide-swath Synthetic Aperture Radar (SAR) in this paper. The imaging algorithm is proved theoretically, and the weighting matrix is proved to be in good condition. The computational complexity of the imaging algorithm is analyzed. The Signal-to-Noise Ratio (SNR) of this kind of multi-aperture wide-swath SAR is discussed. Finally, the simulation result is presented. -
張澄波.綜合孔徑雷達(dá)原理、系統(tǒng)分析與應(yīng)用.北京:科學(xué)出版社,1989年11月第1版,第三章.[2]Currie A, Brown M A. Wide-swath SAR. IEE Proc.-F, 1992, 139(2): 122-135.[3]Callaghan G D, Longstaff I D. Wide-swath space-borne SAR using a quad-element array. IEE Proc.-F, 1999, 146(3): 159-165.[4]Griffiths H D.[J].Mancini P. Ambiguity suppression in SARs using adaptive array techniques. Proc.of IGARSS91 Symp., Helsinki University of Technology, Espo, Finland.1991,:-[5]李慶揚(yáng).數(shù)值分析.武漢:華中理工大學(xué)出版社,1986年12月第3版,第七章. -
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