The Evaluation of Precision about Hopfield, Saastamoinen and EGNOS Tropospheric Delay Correction Model
Wenjun Qu, Wen-Ping Zhu, Shuli Song, Jinsong Ping · Acta Astronomica Sinica · 2008
Based on the tropospheric data and meteorologic data of 36 stations provided by IGS in 2003,we evaluate the correction precision of Hopfield model,Saastamoinen model widely used at home and abroad at present and EGNOS model developed in recent years. The limitation of Hopfield model is pointed out.EG,NOS model can be the correction model in the tropospheric delay for the real-time orientation and navigation.