CAJ | 학술논문

针对实战环境中有源干扰会使雷达目标检测能力下降的问题，提出一种利用ΣΔ-S TA P对抗有源干扰性能的抗干扰方法。通过建立抗干扰模型，对主瓣、非零点副瓣和副瓣零点3种典型干扰方向进行分析，验证ΣΔ-S TA P对抗干扰效果，并与常规 STAP处理进行了比较。仿真结果表明：ΣΔ-STAP能较好地对抗一个ΔA波束非零点副瓣干扰和主瓣干扰，但当干扰从ΔA波束副瓣零点方向进入时，效果不理想且导致主瓣分裂。
침대실전배경중유원간우회사뢰체목표검측능력하강적문제，제출일충이용ΣΔ-S TA P대항유원간우성능적항간우방법。통과건립항간우모형，대주판、비영점부판화부판영점3충전형간우방향진행분석，험증ΣΔ-S TA P대항간우효과，병여상규 STAP처리진행료비교。방진결과표명：ΣΔ-STAP능교호지대항일개ΔA파속비영점부판간우화주판간우，단당간우종ΔA파속부판영점방향진입시，효과불이상차도치주판분렬。
The detective ability of airborne radar is often greatly degraded in active jamming environment. For this case, the ΣΔ-STAP in active jamming-suppression is proposed in the paper. By built suppress jamming model, the ΣΔ-STAP performance in suppressing jamming from main lobe, common side lobe and zero side lobe directions is analyzed and compared in details with results of general STAP. Simulation results presented that ΣΔ-STAP can suppress one jamming from common side lobe direction and main lobe direction well. Its performance in suppressing jamming from the difference beam’s zero side lobe direction is not very good and will cause the main lobe to be separated.