New method to resolve 2π ambiguity in NBV
文献类型：期刊论文
| 作者 | Jiang, Wu1 ; Kawano, Nobuyuki1,2; Kikuchi, Fuyuhiko2; Shu, Fengchun1
|
| 刊名 | EARTH PLANETS AND SPACE
 |
| 出版日期 | 2012 |
| 卷号 | 64期号:1页码:37-41 |
| 关键词 | VLBI 2 pi/cycle ambiguity coarse search fine delay search delay and delay rate NBV |
| 英文摘要 | The Narrow Bandwidth VLBI (NBV) technique is utilized to track spacecrafts in Japanese lunar exploration. However, the problem of 2 pi ambiguity affects the phase delay of the carrier waves transmitted by satellites. A probabilistic algorithm called coarse search and fine delay search, in combination with a simple ambiguity judgment procedure, is presented in the current paper to resolve the 2 pi ambiguity. This method is employed to estimate both the delay and the delay rate from the residual phases obtained using NBV. Compared with previous analytic methods, it does not require strict constraint conditions. The ambiguity can be resolved even when the phase variations in the residual phase are 0.2 rad (approximately 11.6 degrees) compared with the less than 4.3 degree phase variations in the analytic method. The method also has the advantage of giving short time variations in the orbital motion of a satellite without ambiguity using NBV. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geosciences, Multidisciplinary |
| 研究领域[WOS] | Geology |
| 关键词[WOS] | VLBI |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301846000005 |
| 源URL | [http://119.78.226.72/handle/331011/18079]  |
| 专题 | 上海天文台_VLBI研究室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Natl Astron Observ Japan, Oshu, Iwate 0230861, Japan |
| 推荐引用方式 GB/T 7714 | Jiang, Wu,Kawano, Nobuyuki,Kikuchi, Fuyuhiko,et al. New method to resolve 2π ambiguity in NBV[J]. EARTH PLANETS AND SPACE,2012,64(1):37-41. |
| APA | Jiang, Wu,Kawano, Nobuyuki,Kikuchi, Fuyuhiko,&Shu, Fengchun.(2012).New method to resolve 2π ambiguity in NBV.EARTH PLANETS AND SPACE,64(1),37-41. |
| MLA | Jiang, Wu,et al."New method to resolve 2π ambiguity in NBV".EARTH PLANETS AND SPACE 64.1(2012):37-41. |
入库方式： OAI收割
来源：上海天文台
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