摘要
该文基于雷达测角原理和确定性电波传播模型,采用等效地球半径法考虑大气折射效应,建立仰角误差预测方法;计算不同大气折射环境下的仰角误差。研究结果证明:大气折射与多路径的综合效应中,折射环境的变化会对仰角误差造成很大影响,表明大气折射是低仰角跟踪时需要考虑的重要因素。
In this paper, based on the principle theory of angle tracking and the deterministic propagation modeling a method of predicting the errors in the measured elevation angle is presented, which adopt the effective earth＇s radius to represent the atmospheric refraction effects. The errors of elevation angle are simulated in different refraction environments. The results of the study prove that the change of atmospheric refraction can affect the errors of elevation angle notablely associated with the multipath effects, indicating the atmospheric refraction is a key factor to be considered in low-angle tracking.
出处
《电子与信息学报》
EI
CSCD
北大核心
2012年第8期1893-1896,共4页
Journal of Electronics & Information Technology
关键词
雷达目标跟踪
大气折射
等效地球半径
多路径
低仰角跟踪
Radar target tracking
Atmospheric refraction
Effective earth＇s radius
Multipath
Low-angle tracking
