【摘要】 基于曲线合成孔径雷达原理与空间几何关系,讨论了曲线合成孔径雷达信号模型与成像方法,推导出目标的一维信号模型、二维信号模型,并将其扩展到了三维信号模型。考虑到不同的曲线孔径形状将对方位分辨率和高度分辨率有不同影响,详细研究了各种不同形状的曲线孔径,分析和对比了各种形状的孔径,给出了各自的优缺点和适用条件。结论是上下、左右对称的孔径形状较不对称的效果更优,L型孔径将导致很高的旁瓣。仿真实验可以对真实飞行航迹起指导作用。更多还原

【Abstract】 Based ontheory and space geometry relation of Curvilinear Synthetic Aperture Radar,the paper discussed signalmodel andimaging method for Curvilinear Synthetic Aperture Radar.The 1-Dsignal model and 2-Dsignal model for the targetwere deduced.Andthe 3-Dsignal model was also deduced as extension.Because different curvilinear aperture shape wouldinflu-ence the azimuthresolution and height resolution differently,the paper studied all kinds of curvilinear aperture shapein detail.Theaperture shape was analyzed and compared.The merit,defect and working conditionfor each were given out.The conclusion issymmetric aperture shape fromupto down,or fromleft to right can get better effect than asymmetric ones.L-shape aperture willcause high side-lobe.The simulation experiment can direct real flight path.更多还原