面向应用的SAR场景回波信号仿真质量评估方法

Simulation Evaluation for Application-oriented SAR Scene Raw Signal

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 pro- posed at home and abroad. However, there is lack of evaluations for SAR raw signal simulation. Extant methods evaluate raw sig- nal via PLSR and are not suitable for SAR target and Land Cover. Inspired by application background of SAR raw signal, combi- ning with feature of SAR target chips and Land Cover, the paper evaluates raw signal dividedly. At last, the raw signal of SAR tar- get and Land Cover is simulated to demand the rationality and feasibility.