Variation of satellite transponder delay

	Variation of satellite transponder delay
	Liu, Jihua; Li, Zhigang; Yang, Xuhai; Ou, Jikun; Zhong, Shiming; Sun, Baoqi; Wang, Jiasong; Kong, Yao; He, Zhanke
	2014
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	59 期号:21 页码:2568-2573
摘要	For precise orbit determination of geosynchronous earth orbit (GEO) satellites using transfer ranging observations, it is generally assumed that the variation of the satellite transponder delay is very small and that it can be solved as a constant parameter together with satellite orbit parameters. However, this assumption is too general and it reduces the accuracy of orbit determination for GEO satellites. To study and analyse the impact of the satellite transponder delay on GEO satellites orbit determination, two schemes were proposed. First, the satellite transponder delay was eliminated by forming single-difference observations between two ground stations; second, the satellite transponder delay was described as a constant parameter. The preliminary results demonstrate a difference of about 1-2 m between the two schemes when used for precise orbit determination of GEO satellites. By fixing the GEO satellite orbit and other relevant parameters estimated by single-difference model, we inversed the instantaneous transponder delay from non-difference observation. It was found that the satellite transponder delay has a distinct diurnal variation, with an amplitude of 3-4 m. The findings of this paper are helpful in establishing an accurate model of satellite transponder delay and in improving the accuracy of GEO satellites orbit determinations and predictions.
部门归属	高精度时间传递与精密测量研究室
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/7372
专题	高精度时间传递与精密测定轨研究室
推荐引用方式 GB/T 7714	Liu, Jihua,Li, Zhigang,Yang, Xuhai,et al. Variation of satellite transponder delay[J]. CHINESE SCIENCE BULLETIN,2014,59(21):2568-2573.
APA	Liu, Jihua.,Li, Zhigang.,Yang, Xuhai.,Ou, Jikun.,Zhong, Shiming.,...&He, Zhanke.(2014).Variation of satellite transponder delay.CHINESE SCIENCE BULLETIN,59(21),2568-2573.
MLA	Liu, Jihua,et al."Variation of satellite transponder delay".CHINESE SCIENCE BULLETIN 59.21(2014):2568-2573.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Variation of satelli（274KB）			限制开放	CC BY-NC-SA	请求全文