摘要
对于编队飞行的目标 ,由于它们之间的间距较小 ,常规雷达无法直接在距离和方位上区别目标 .如果利用逆合成孔径雷达成像技术对运动目标回波的多普勒频率的差别 ,获得的较高的横向分辨率目标是完全有可能分辨目标的 .该文将图形锐化度准则估计目标的运动参数进行平动补偿的方法用到低分辨雷达一维横向成像 ,并采取超分辨方法提高分辨率 ,进行编队多目标的精确分辨 .实测数据证明 ,该方法是一种有效的多目标分辨方法 .
Due to the short distance betwteen planes which fly in a group, the ordinary low resolution radar can not distinguish them in both distance and azimuth. If we use the technology of ISAR to resolve the difference in Doppler frequency of the targets and obtain a fine resolution cross-cross image, we may separate them, but a long time of coherent processing is needed. In this paper, we exploit the graphics sharpness rule to estimate the motion parameter for one dimensional cross-range image of a low resolution radar and compensate translational motion. Finally we adopt the method of super-resolution to improve the resolution. The processing experimental results of a group targets show that the proposed approach is correct and effective.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2001年第4期482-486,共5页
Journal of Xidian University
基金
国家自然科学基金资助项目 ( 698310 40 )
