靶场光学测量数据大气折射修正研究

摘要

Atmospheric refraction error is one of the primary systems errors. How to correct the atmospheric refraction error of optical measurement data in navy rage was studied in this paper. First, the model of atmospheric refraction error was founded. In succession, the computing process was introduced in detail At last, the data of negative elevation, low elevation and high elevation were used to correct the atmospheric refraction error of optical measurement data to test the method. The results verify that the method is scientific and reasonable. The method can not only correct the atmospheric refraction error of optical measurement data in navy range but also improve the data precision and reliability.%研究外弹道数据测量优化问题,在外弹道测量数据处理中,由于大气折射误差,引起系统误差.当目标相对于测量装备为低负仰角时,大气折射给俯仰角带来的测量误差最大可达3'～4',造成测量数据不准确.为了对靶场的光学测量数据进行有效的大气折射修正,提出了建立俯仰角折射修正模型,接着详细论述了折光修正计算过程,最后以负仰角、低仰角和大仰角的目标为例,采用改进方法进行大气折射修正仿真,检验修正结果.结果表明,新方法科学、合理,具有工程应用价值.靶场光学测量数据大气折射修正方法很好地修正了由于大气折射带来的高度误差,提高了数据处理精度和数据可靠性.