线性调频步进雷达ISAR信号特性及成像

Analysis of the Feature and the Imaging Based on LMFS ISAR Signal

摘要:

文章在建立了线性调频步进ISAR回波信号模型的基础上,对线性调频步进雷达ISAR信号特性进行了详细的分析,指出了由径向速度和转动速度所引起的耦合项、一次项和二次项对距离合成高分辨和方位聚焦的影响；给出了线性调频步进雷达ISAR成像的详细步骤,并用仿真论证了文章分析的可靠性。

Abstract:

The feature of linearly modulated frequency stepped radar signal (LMFS) was analyzed based on the ISAR model. The influence of the coupled term, the first order term and the quadratic term to the high resolution combination of the range and the azimuth focusing was also analyzed. In the end, the steps of linearly-modulated frequency stepped radar ISAR imaging were presented. The simulation result confirmed the reliability of the analysis.