大气时变特性对电波折射修正精度影响的实验研究
THE EXPERIMENTAL STUDY ON THE EFFECT OF TIME VARIATION OF ATMOSPHERE ON THE PRECISION OF RADIOWAVE REFRACTIVE CORRECTION
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摘要: 要提高外弹道测量系统的精度,就必须提高电波折射修正精度,这样常用的球面分层折射修正公式就不能满足要求。因为大气参数是时空四维结构函数,所以新的大气折射修正公式不仅要考虑大气在垂直、水平方向上的变化,而且也需要考虑其随时间变化特性的影响,本文给出了大气时变特性对折射修正精度影响的实验结果。
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关键词:
- 大气时变特性; 折射修正
Abstract: To improve the precision of the outer measuring system,the accuracy of radiowave refractive correction must be raised. The refractive correction's formulation in the assumption of atmospheric ballface stratification does not meet the requirements,because the atmospheric parameters are fucnctions of the four dimention at temporospatial structure. The new refractive correction's formulation needs to study the atmospheric variations not only on space, but also on time. This paper gives the experimental results of the effect of the atmospheric time variation on the precision of the radiowave refractive correction. -
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