一种基于知识源的高保真机载雷达杂波仿真方法  

A High Fidelity Airborne Radar Clutter Simulation Method Based on Knowledge Sourse

作　　者：张先义[1] 于永[1] ZHANG Xianyi YU Yong(Nanjing Research Institute of Electronics Technology, Nanjing 210039, China)

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2017年第8期81-83,88,共4页Modern Radar

摘　　要：首先,介绍了美国空军研究实验室的高保真知识辅助的传感器信号处理和专家推理数据;然后,在分析空时自适应处理技术实际应用中面临的问题和现有杂波仿真方法不足的基础上,提出了一种基于数字地形分类数据的高保真机载相控阵雷达杂波数据仿真方法,通过数字地形分类数据导入相应的后向散射系数,反演雷达实际辐射时不同地物回波;同时,考虑实际的通道误差、天线方向图等因素,仿真得到信号级杂波数据。该数据与传统仿真方法相比具有更高的置信度,仿真结果验证了该方法的有效性。The high-fidelity knowledge-aided sensor signal processing and expert reasoning data of America Air Force Research Laboratory is first introduced. After analyzing the practical problem of space time adaptive processing application and the disadvantage of existing clutter simulation methods,a high-fidelity clutter simulation method of airborne phased array based on the digital land coverage data is proposed. Through the corresponding of the digital land coverage data,the different kinds of land clutter is inversed. And the real factors,as channel error and antenna pattern and so on,are considered,the signal level＇s clutter data is generated,and it has better confidence than the traditional methods. The simulation result proves the validity of this method.

关 键 词：机载雷达 相控阵 杂波仿真 高保真 

分 类 号：TN959.73[电子电信—信号与信息处理]