Comparison and research of group refractivity models and atmospheric delay to LiDAR

Jiuying Chen; Mei Zhou; Geer Teng; Huijing Zhang; Jian Hu; Chuanrong Li; Xiu Li; Qi Lu

doi:10.1117/12.2525318

9 September 2019 Comparison and research of group refractivity models and atmospheric delay to LiDAR

Jiuying Chen, Mei Zhou, Geer Teng, Huijing Zhang, Jian Hu, Chuanrong Li, Xiu Li, Qi Lu

Proceedings Volume 11127, Earth Observing Systems XXIV; 1112711 (2019) https://doi.org/10.1117/12.2525318
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

Satellite laser range system measures the distance between the satellite and the surface of the earth by figuring out the transit time of laser pulse. The beam is refracted when it goes through the atmosphere. The atmosphere refraction effect causes laser propagation delay and path bending, which is one of the key factors to restrict the accuracy of laser ranging. In order to improve the accuracy of atmospheric refraction delay correction, it is necessary to strengthen the study of atmospheric group refractivity models and atmospheric refraction delay correction method. According to the datum of Xuzhou upper air meteorological station, which are the monthly values of upper limit layers for 30 years (1981-2010) in China, three atmospheric group refractivity models were analyzed and compared. The atmospheric refraction delays to LiDAR were calculated by ray tracing method. The differences among the group refractivity models as a function of month and angle of direction were given, which lay the foundation for the practical application and precision evaluation of LiDAR.

Conference Presentation

Citation Download Citation

Jiuying Chen, Mei Zhou, Geer Teng, Huijing Zhang, Jian Hu, Chuanrong Li, Xiu Li, and Qi Lu "Comparison and research of group refractivity models and atmospheric delay to LiDAR", Proc. SPIE 11127, Earth Observing Systems XXIV, 1112711 (9 September 2019); https://doi.org/10.1117/12.2525318

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