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| 引用本文： | 朱春春,李征航,屈小川,申小平.???????????GPS????????????????????[J].大地测量与地球动力学,2015,35(1):81-86. |
| 作者姓名： | 朱春春 李征航 屈小川 申小平 |
| 作者单位： | 1 交第二航务工程勘察设计院有限公司， 武汉市民主路555号, 430071 2 汉大学测绘学院， 武汉市珞喻路129号, 430079 |
| 摘 要： | ??RINEX HO???????GPS?????λ?????е???(?????????)????????????????????GPS???????е??????????(ΔIH)p,qi,g??????????(ΔIH)p,qi,g????γ?????????????????????????????????????????????????????￡???Bernese 5.0???????????????????????????????δ???и????????????????????л????????????????????????????????ΔbH???????????ΔbH???????С????????????????????Δ??b??H??????????????????????????????????????????ε??С??ΔbH????????? |
| 关 键 词： | ?????????? PS?????? ?????? ??γ?? ???????? |
| 收稿时间： | 2014-03-24 |
Higher-Order Ionospheric Effects on the GPS Double Difference Observation and Baseline Vectors |
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| ZHU Chunchun,LI Zhenghang,QU Xiaochuan,SHEN Xiaoping.Higher-Order Ionospheric Effects on the GPS Double Difference Observation and Baseline Vectors[J].Journal of Geodesy and Geodynamics,2015,35(1):81-86. | |
| Authors: | ZHU Chunchun LI Zhenghang QU Xiaochuan SHEN Xiaoping |
| Institution: | 1 CCCC Second Harbor Consultants Co, Ltd., 555 Minzhu Road,Wuhan 430071, China 2 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road, Wuhan 430079, China |
| Abstract: | Ionospheric 2nd-order and 3rd-order items of GPS observation are calculated by RINEX HO software. On this basis, higher-order ionospheric delay (ΔIH)p,qi,g of the GPS double difference observation is determined. The relationship between (ΔIH)p,qi,g and geomagnetic latitude, baseline length, baseline direction and the sun''s activity level are studied. Then, under the assumption that other conditions are the same, the Bernese 5.0 software are applied to the baseline solution for the observed values, both under and not under the higher-order ionospheric delay correction. Higher-order ionospheric effects on baseline vectors ΔbH are calculated. The results show that the value of ΔbH is very small and can be ignored in the general case. ΔbH has no exact relationship with the factors such as baseline length, solar activity level and so on, but with the decrease of the time, ΔbH will increase. |
| Keywords: | higher-order ionospheric delay GPS double difference observation solar activity level geomagnetic latitude baseline vectors |
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