摘要
自然场景高低起伏变换的不确定性和各种介质随机分布的特点,是实现合成孔径雷达图像快速模拟的难点问题。提出一种合成孔径雷达图像模拟的方法,根据一处真实自然地表的DEM数据构造出整个仿真场景模型,利用一种统计经验公式计算得到场景中各介质的RCS值。建立了合成孔径雷达回波信号的表达式,在此基础之上完成了对场景的合成孔径雷达图像模拟,得到了较为理想的结果。
The rugged indeterminacy of the natural scenes and the characteristic of random distribution of various media are the difficulties to realize the fast simulation of imaging of Synthetic aperture radar. An imaging simulation method of SAR was proposed. A simulation scenes model was constructed by using a real DEM. Based on a statistical experiential expressions, the Radar Cross Section（RCS） parameters of various media was computed. The echo signal expression of SAR was reported and the simulation imaging test has been finished.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第2期441-445,共5页
Journal of System Simulation
基金
航空科学基金(05F53032)。
关键词
合成孔径雷达
成像
自然场景
模拟
synthetic aperture radar
imaging
natural scenes
simulation
