ON MODELS OF IONOSPHERIC DELAY CORRECTION FOR SINGLE-FREQUENCY GPS RECEIVER
单频GPS接收机的电离层延迟改正模型研究

Aiming at the defect of single-frequency GPS receiver affected by ionospheric,the effect of ionospheric delay correction with four kinds of different ionospheric models(i.e.Klobuchar,NeQuick,IRI and IGGSH) have been analyzed by use of some GPS data as the example.The spatial-temporal characteristics of each ionospheric model is analyzed statistically.The calculation results show that IGGSH model is better than the other three ionospheric delay correction models.