激光与光电子学进展, 2019, 56 (23): 230101, 网络出版: 2019-11-29
星载激光测高仪大气延迟校正的敏感性分析 下载: 931次
Sensitivity Analysis of Atmospheric Delay Corrections for Satellite-Borne Laser Altimeter
大气光学 激光测距 大气延迟校正 大气参数 数值模拟 敏感性 atmospheric optics laser ranging atmospheric delay correction atmospheric parameters numerical simulation sensibility
摘要
中国科学院计划、高分专项;
Abstract
An atmospheric delay correction model based on a ray-tracing algorithm and a surface pressure model are proposed in this paper. As atmospheric parameters for the models, atmospheric data from the National Centers for Environmental Prediction (NCEP) are introduced in the models for the numerical simulations of atmospheric delay corrections of satellite-borne laser altimeters. The result shows that the atmospheric correction along the zenith direction is approximately 2.30 m. By applying sensitivity factors, such as the temperature, precipitable water, station height, and altitude angle, to analyze the sensitivity of the atmospheric delay correction, it is found that the atmospheric delay effect has a low sensitivity to the temperature and precipitable water, while has a strong sensitivity to the satellite altitude angle and station height. The results of this work can be used as a reference for determining the operable conditions for subsequent satellite-borne laser ranging research.
江丹, 覃驭楚, 王小平. 星载激光测高仪大气延迟校正的敏感性分析[J]. 激光与光电子学进展, 2019, 56(23): 230101. Dan Jiang, Yuchu Qin, Xiaoping Wang. Sensitivity Analysis of Atmospheric Delay Corrections for Satellite-Borne Laser Altimeter[J]. Laser & Optoelectronics Progress, 2019, 56(23): 230101.