大气折射误差快速修正方法研究  

New method for the atmospheric refraction error correction in the range

作　　者：韩先平[1] 

机构地区：[1]中国人民解放军92941部队

出　　处：《电子测量技术》2016年第5期57-60,共4页Electronic Measurement Technology

摘　　要：大气折射误差对靶场外弹道测量精度影响非常大,特别是低仰角远距离目标。针对海上靶场气象特点和多年实测试验数据统计结果,基于大气折射指数经验公式,推导出了具体的电波折射误差修正模型。经多次试验任务检验,该误差修正模型测距修正精度小于0.5m,仰角修正精度小于5s,且模型简单,直接套用易于计算,修正后满足靶场外弹道精度要求,可应用于实时数据处理。Atmospheric refraction errors significantly affect the accuracy of the exterior trajectory measurement in the range,especially for low elevation angle and distant targets.Based on characteristics of marine meteorological in the range and real test data of years,and the empirical formula of error correction for atmospheric refraction,we deduce specific refractive error correction model.Through a number of real experiment test,we conclude that the correction accuracy of the distance is less than 0.5m,and the elevation angle less than 5s.The model is simple,applied directly,and easy to calculate.The correction output matches the accuracy requirement of measurement of the exterior trajectory in the range,and thus can be applied to real-time data processing.

关 键 词：大气折射 折射指数 修正模型 残差 精度 

分 类 号：P401[天文地球—大气物理学与大气环境]