摘要
文中分析了非线性ChirpScaling算法 (CS算法 )成像原理以及大斜视角下二次距离压缩随距离非线性变化产生的影响 ,提出了一种改进的非线性CS算法 ,该算法满足二次距离压缩随距离的非线性变化从而改善了散射点的聚焦性能 .经过理论分析和仿真实验验证了该方法的有效性 .
The principle of the nonlinear chirp scaling algorithm (NCSA) is introduced, and the influence of the nonlinear range variation on secondary range compression (SRC) under large squint is analyzed. Based on the assumption of SRC variation with nonlinear range, an improved NCSA is proposed and the focusing feature of the scatter is improved. Both theoretical analysis and experimental results show the effectiveness of the method.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2000年第3期273-277,共5页
Journal of Xidian University
基金
国家自然科学基金资助项目! (69831 0 4 0 )
