雷达海杂波与气象杂波模拟方法研究

Research on simulation methods of radar sea and weather clutters

雷达海杂波和气象杂波可采用多种仿真数学模型产生,但其信号模拟逼真度不高,难以满足雷达操作使用人员在近于实际海洋环境中的训练要求。利用海上试验和训练中采集的实际雷达杂波数据,按照预先设定的海洋自然环境条件,采用电磁波传播模型和自然环境模型对杂波回波数据进行调制处理以更加逼真地产生所需要的杂波回波信号,使雷达显现的杂波回波信号的强度和变化规律符合预设场景要求,提高训练效果,提升雷达操作使用人员在不同海上环境条件下的应对处理能力。

Radar sea and weather clutters can be generated through various mathematical simulation models. However,the fidelity of the simulated signals is not good enough for the radar operator 's training in the approximately actual marine environment. By using the real radar clutter data collected in the sea trial and training,according to the preset marine natural environment conditions,the clutter echo data are modulated through the electromagnetic wave propagation model and the natural environment model to generate the required clutter echo signals more realistically,making the strength and the change rules of the clutter echo signals satisfy the requirement of the preset scenario,improving the training effect,and strengthening the radar operator's coping capacity in different marine environment conditions.