航空科学技术2025，Vol.36Issue(3)：40-47,8.DOI:10.19452/j.issn1007-5453.2025.03.005
基于Radon-STAP的机载雷达杂波抑制与高速目标相参积累联合处理方法
Joint Processing of Airborne Radar Clutter Suppression and High-speed Target Coherent Integration Based on Radon-STAP
摘要
Abstract
Due to the motion of the platform,the airborne radar detection will be affected by the space-time coupled clutter,resulting in target detection difficulties.Space-Time Adaptive Processing(STAP)can effectively suppress the space-time coupled clutter.However,for high-speed targets,the range migration of the echo signals will cause the mismatch of the space-time steering vectors,which causes declined clutter suppression performance of the traditional STAP algorithm.To solve the problem of high-speed target detection under strong clutter environment for airborne radar,a joint processing method based on Radon-STAP for clutter suppression and high-speed target coherent integration is proposed.Firstly,a space-time model of high-speed target echo with range migration is established,and the influence of clutter is taken into account.Then,the range migration is converted into phase change by transforming the echo signal to the frequency domain,and the corresponding Migration-Doppler joint compensation function is designed,so that the improved space-time filter is applied to Non-stationary clutter suppression and target coherent integration detection.Finally,the effectiveness of the proposed method is verified by simulation experiments.The present algorithm is able to achieve clutter suppression and effective integration of weak target signals despite the high target speed and the range migration.关键词
机载雷达/杂波抑制/高速目标/相参积累/Radon-STAPKey words
airborne radar/clutter suppression/high-speed target/coherent integration/Radon-STAP分类
电子信息工程引用本文复制引用
肖子皓,邓江云,孙智,崔国龙..基于Radon-STAP的机载雷达杂波抑制与高速目标相参积累联合处理方法[J].航空科学技术,2025,36(3):40-47,8.基金项目
国家自然科学基金(62101099) （62101099）
中国博士后科学基金(2021M690558,2022T150100) （2021M690558,2022T150100）
航空科学基金(2022Z017080001) National Natural Science Foundation of China(62101099) （2022Z017080001）
China Postdoctoral Science Foundation(2021M690558,20227150100) （2021M690558,20227150100）
Aeronautical Science Foundation of China(2022Z017080001) （2022Z017080001）
