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忆s clutter data is generated, and it has better confidence than the traditional methods. The simulation result proves the validity of this method.

TN959.73