合成孔径雷达(Synthetic Aperture Radar,SAR)回波信号仿真具有广泛的应用背景,国内外提出了很多行之有效的SAR回波仿真方法。然而,衡量SAR回波信号仿真质量的手段相对缺乏,现有方法是采用点目标的峰值旁瓣比衡量仿真质量,但是缺乏对仿真目标或场景的评估能力。文中从SAR回波信号仿真的应用背景出发,结合目标与地物的特征,分别对目标与场景的回波信号仿真质量进行评估。利用仿真的SAR目标与场景,证实了该评估方法的合理性与可行性。

Synthetic aperture radar raw signal is desperate needed in many categories, and a couple of efficient methods are proposed at home and abroad. However, there is lack of evaluations for SAR raw signal simulation. Extant methods evaluate raw signal via PLSR and are not suitable for SAR target and Land Cover. Inspired by application background of SAR raw signal, combining with feature of SAR target chips and Land Cover, the paper evaluates raw signal dividedly. At last, the raw signal of SAR target and Land Cover is simulated to demand the rationality and feasibility.