基于NPS蒸发波导预测模型的适应性研究

Adaptability research of evaporation duct predication model based on NPS model

蒸发波导预测模型的适应性研究对电磁波的传播、雷达通信及战术指导有着十分重要的意义。根据蒸发波导的探测原理,为了研究蒸发波导NPS模型对南海海域的适应性,在我国南海海域搭建了一套气象梯度仪测试设备,获取了大量的海洋水文气象数据,并仿真分析了空气温度、相对湿度、气海温差、风对蒸发波导高度的影响,将蒸发波导高度实测数据和NPS模型预测值进行了对比分析与验证。实验结果表面,稳定条件下NPS模型预测的蒸发波导高度的偏差值随气海温差呈现出近似线性变化规律。该文的研究成果对南海海域蒸发波导预测模型的选择具有一定的指导意义。

The research on the adaptability of the model for predicting the evaporation duct propagation of electromagnetic wave has an extremely important significance in radar communication and tactical guidance.According to the detection principle of evaporation duct,a set of meteorological gradient testing equipment was built in the South China Sea and obtained a body of the marine hydrological and meteorological data. The effects of air temperature,relative humidity,air sea temperature and wind on evaporation duct height were analyzed based on NPS model. In the South China Sea the adaptability of NPS model was researched,the evaporation duct height of measured and predicted value was compared and analyzed. The experiment results show that the evaporation duct height deviation using NPS prediction model presents a linear relationship with the air sea temperature difference in a stability condition. The research result of the prediction model is very important for selecting the prediction model for measuring the evaporation duct in the South China Sea.