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目前的实时弹道处理过程中,由于获得探空气象数据比较困难,电波折射误差均采用各种简化方法进行计算,因而大气折射误差计算的精度不高,修正效果不佳。针对这种现状,本文提出了基于双指数模型的射线瞄迹法计算大气折射误差。试算结果表明,该方法的计算精度与事后数据处理所采用的电波折射误差修正方法相当,且能够满足实时处理的时间要求。
In the current real-time ballistic processing, because of the difficulty of obtaining the sounding meteorological data, the refraction errors of the electric waves are calculated by various simplified methods, so the accuracy of atmospheric refraction error calculation is not high, and the correction effect is not good. In view of this situation, this paper proposes a ray-trace method based on the double exponential model to calculate the atmospheric refraction error. The trial results show that the accuracy of this method is equivalent to the method of correcting the refraction error of radio waves used in data processing, and can meet the time requirements of real-time processing.