摘要
建立了机载双基地雷达在任意配置下的杂波模型,其中考虑了双基地雷达的几何配置、雷达系统的系统参数和距离模糊等实际因素对杂波谱的影响。基于该模型计算仿真了多普勒曲线、杂波的空时二维似然谱、杂波特征谱和二维改善因子图,然后基于仿真结果分析了杂波特性,得出了机载双基地雷达杂波的一些规律。对机载双基地雷达杂波特性的认识有助于开展对机载双基地雷达的杂波抑制与空时自适应处理技术研究。
The ground clutter model of airborne bistatic radar under condition of arbitrary geometric configuration is established. In this model, clutter spectrum affected by the practical factors such as the geometric configuration of bistatic radar, the parameters of radar system and range ambiguity etc. is considered in the model. Based on the model, the Doppler curve, space-time clutter likely spectrum, clutter eigenvalue spectrum and improvement factor are computed and simulated. Then, the characteristics of ground clutter based on the result of simulation are analyzed, and some principles of groufid clutter of airborne bistatic radar are gained. Recognition of characteristics of ground clutter of airborne bistatic radar will aid research on clutter suppression and STAP processing for airborne bistatic radar.
出处
《现代防御技术》
北大核心
2010年第3期132-138,共7页
Modern Defence Technology
关键词
机载双基地雷达
杂波建模
杂波特性
空时自适应处理
airborne bistatic radar
clutter modeling
characteristics of clutter
space-time adaptive processing
