海面大气环境下雷达作用距离的预报方法

Prediction of radar detection range in ocean atmospheric environment

研究了海洋大气环境条件下雷达对已知散射截面积目标作用距离的预报方法。通过气象信息得到大气折射率剖面,利用抛物型方程计算出电磁波传播单程损耗,利用雷达方程得到目标的传播损耗门限,最后得到雷达对目标的最远作用距离。实测结果表明,此方法是可行的。

The prediction of radar detection range against targets with known cross sections in the ocean environment is studied. From the meteorological data the atmospheric refractivity profile is achieved. Through the parabolic equation the one-way loss of electromagnetic wave propagation is calculated. With the radar equation the one-way loss threshold is obtained and the maximum detection range of the radar is predicted. This method is tested to be feasible.