摘要
针对单频GPS接收机受电离层影响较大的特点,利用GPS实测数据,比较研究了Klobuchar模型、NeQuick模型、IRI模型和IGGSH模型的电离层延迟改正效果,统计分析了各模型在时空上的特点,计算结果表明,IGGSH模型优于其他3种电离层延迟改正模型。
Aiming at the defect of single-frequency GPS receiver affected by ionospheric, the effect of ion- ospheric 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.
出处
《大地测量与地球动力学》
CSCD
北大核心
2012年第2期69-73,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40890160
41021003)
关键词
单频GPS
电离层延迟模型
总电子含量
单层模型
时空特征
single-frequency GPS
ionospheric delay model
total electron contain （ TEC ）
single layer model
spatial-temporal characteristics
