摘要
针对传统单通道合成孔径雷达(SAR)动目标检测中存在的不足,提出了一种基于多波段的单通道SAR运动目标检测方法,该方法对方位抽取得到的两个等效通道数据进行杂波抑制,然后结合Keystone方法实现动目标的检测、参数估计与定位.并提出了多波段SAR系统参数优化设计的方法,该方法可以克服传统动目标检测系统中的速度盲区问题,从而有效提高波段的利用率和动目标的检测概率.仿真实验验证了所提方法的有效性和可行性.
To overcome the shortcomings of the conventional method for moving target detection in single-channel SAR , a method for moving target detection in single-channel multi-band SAR is presented . In this method , the stationary clutter could be eliminated by using the data of the equivalent dual-channel , which is constructed by desampling the original SAR data in the azimuth direction . Then moving target detection , parameter estimation and location are accomplished with the Keystone method . Moreover , a parameter optimization method in the multi-band SAR system is presented , which could solve the problem of blind area in the velocity detectable in the traditional SAR moving target detection system . As a result , the bands utilization and moving target detectable alarm increases greatly . Finally , simulation results are presented to demonstrate the effectiveness and feasibility of the proposed method .
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2014年第3期63-70,共8页
Journal of Xidian University
基金
国家自然科学基金资助项目(11176022
61201283
61172137
61301292)
新世纪优秀人才支持计划资助项目(NCET-12-0916)
基本科研业务费资助项目(K5051302047
K5051202001)
信息综合控制国家重点实验室资助项目(newl20080201)
关键词
合成孔径雷达
动目标检测
单通道多波段
synthetic aperture radar （SAR）
moving target indication
single-channel multi-band
