空天预警研究学报2023，Vol.37Issue(6)：406-411,6.DOI:10.3969/j.issn.2097-180X.2023.06.004
机载雷达同时SAR/GMTI模式全帧凝聚算法研究
Research on full frame condensation algorithm of airborne radar in SAR/GMTI mode
马军1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,合肥 230088||孔径阵列与空间探测安徽省重点实验室,合肥 230088
- 折叠
摘要
Abstract
Airborne radar with simultaneous SAR/GMTI mode enables high-resolution imaging.The tradi-tional plot condensation algorithm has difficulty in solving the problem of defocus caused by ground target mo-tion,of target splitting caused by multi-beam detection and target size and shape,as well as the problem of false plot,and the plot positioning accuracy is also poor.To this end,the echo pulses in SAR/GMTI mode are divided into groups;the input beam model of full frame condensation is constructed,and the parameters of the condensa-tion model are determined.Then,through the multi-beam space-time unified processing,the space-time unified formula of multi-beam is obtained,and finally the full frame condensation algorithm is proposed.The simulation results verify that the full-frame condensation algorithm proposed in the paper can effectively solve the problem of target splitting and false plot,with the accuracy of plot location improved.The quantitative analysis is also made to prove that the proposed algorithm is reasonable and effective.关键词
机载雷达/同时合成孔径/地面运动目标检测/点迹凝聚Key words
airborne radar/SAR/GMTI/plot condensation分类
信息技术与安全科学引用本文复制引用
马军..机载雷达同时SAR/GMTI模式全帧凝聚算法研究[J].空天预警研究学报,2023,37(6):406-411,6.
