【作者】 王全民； 郭刚； 王春财； 黄柯棣；

【Author】 Wang Quan-min Guo Gang Wang Chun-cai Huang Ke-di (Department of Mechanical Engineering and Automation.National University of Defence Technology.Hunan.Changsha,410073)

【机构】 国防科技大学机电工程与自动化学院；

【摘要】 在雷达系统仿真中,仿真结果的可信度不仅与雷达和目标模型有关,也与射频环境效应模型有关,这些模型包括杂波、多路径、绕射等与地面状态相关的效应。在传统的雷达功能仿真中,射频环境效应因素被作为一个方向图传播因子来考虑,雷达模型所得到的信息非常有限。在信号级的雷达仿真系统中,雷达模型要求仿真的回波包含延时、多普勒频移、极化等信息。本文通过对地面射频环境效应的原理和算法的讨论和分析,提出了一个地面射频环境模型,该模型为信号级的雷达仿真提供了一个较为可靠的仿真射频环境。最后,通过具体的仿真实例演示了模型的使用,仿真结果表明了其可行性和正确性。更多还原

【Abstract】 In radar system simulation,the reliability of simulation results depends not only on radar and target models,but also on RF (radio frequency) environment models,including clutter,multipath,diffraction.In radar function simulation,all of these factors are treated as a single pattern-propagation factor and can only give limited information for radar models.In signal-level simulation,radar models require simulated echoes should include information such as delay,doppler frequency,polarization,etc.By discussing and analyzing the principles and algorithms of RF environment effects of ground,this paper proposed a ground RF environment model in signal-level,which can provide a reliable RF environment for signal-level simulation of radar systems.A simulation example involving clutter model is carried out and analyzed.更多还原