摘要
针对传统的SAR-GMTI处理方法都需要获知目标的运动参数才能实现对目标聚焦的问题,提出了Keystone-filter-LVD的SAR-GMTI处理方法,该方法首先进行Keystone变换校正目标基带对应的距离单元走动,后利用剩余整数倍PRF模糊对应的补偿因子构造多个滤波器组进行滤波。该方法能有效的提高检测概率并实现目标高精度成像。
The problem for traditional SAR-GMTI processing methods need to know the targetg motion parameter which can be achieved on the target focus. This paper puts forward SAR-GMTI processing method of Keystone-filter-LVD. Firstly the method Keystone transform and correct target baseband cor- responding distance unit walking, then with the remaining integer multiple PRF vague construct multi- ple factors corresponding compensation filter bank filtering. The method can effectively improve the de- tection probability and achieve the goals of high precision imaging.
出处
《贵州师范大学学报（自然科学版）》
CAS
2015年第6期101-105,共5页
Journal of Guizhou Normal University：Natural Sciences
基金
四川省教育厅科研项目(14ZB0316)
四川文理学院教改项目(2013JY14)
关键词
合成孔径雷达
地面动目标检测
聚焦
synthetic aperture radar（SAR）
ground moving target indication （GMTI）
focussing
