摘要
直达波和地(海)杂波是机载外辐射雷达面临的重要问题,针对基于单频网数字广播电视信号的机载外辐射源雷达杂波进行了研究.建立杂波模型,然后重点分析了杂波的空时特性和杂波多普勒距离依赖性.基于中国移动多媒体广播信号生成杂波数据,仿真实验验证了杂波模型的正确性,并根据结果提出了针对杂波特性的杂波抑制方案,为机载外辐射源雷达杂波抑制和目标检测奠定了基础.
Direct wave and ground（sea） clutter is the important problem which airborne passive radar faced. Thus, This paper studies the clutter of the airborne passive radar based on digital radio and television signals using single frequency network（SFN） con- figuration. Firstly, a clutter model of airborne passive radar is built. Secondly, the space-time characteristics and the Doppler-range dependence of the clutter is emphatical- ly analyzed. At last, the clutter data based on the digital radio and television signal which is SFN structure is simulated, the simulation results prove the validity of the model, and clutter suppression method in view of the clutter characteristics is proposed according to the simulation results. And these provide theory basis for the clutter sup- pression and target detection of airborne passive radar.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第4期595-600,共6页
Chinese Journal of Radio Science
基金
国家自然科学基金(41074116
41106156
61271400)
教育部博士点基金(20120141110077)
