Fast estimation and analysis of the inter-frequency clock bias for Block IIF satellites
文献类型：期刊论文
| 作者 | Li, Haojun1,2; Zhou, Xuhua1 ; Wu, Bin1,2
|
| 刊名 | GPS SOLUTIONS
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 17期号:3页码:347-355 |
| 关键词 | Triple-frequency signals Precise point positioning Inter-frequency clock bias |
| 英文摘要 | The inter-frequency bias of PRN25 was noticed by the scientific community and considered to be caused by thermal variations. The inter-frequency bias leads to an apparent inter-frequency clock bias (IFCB), which could be obtained using the difference of two ionosphere-free phase combinations (L1/L2 and L1/L5). We present an efficient approach derived from the epoch-differenced strategy for fast estimation of IFCBs for Block IIF satellites. For the analysis, data from 32 stations from the IGS network spanning 10 months (DOY 213, 2011-153, 2012) are processed. The processing times show that the epoch-differenced method is more efficient than the undifferenced one. In order to study the features of IFCB, a harmonic analysis is performed by using a FFT (fast Fourier transformation), and significant periodic variations with the periods of 12, 6 and 8 h are noticed. The fourth-order period is determined by comparing the performances of the model with different periods. After determination, a harmonics-based function of order 4 is used to model the IFCB, and the single-day amplitudes and phases are estimated for the 10 months from a least squares fit. Based on the estimated results, the characterization of IFCB is discussed. The algorithm is incorporated into the MGPSS software developed at SHAO (Shanghai Astronomical Observatory, Chinese Academy of Sciences) and used to monitor the IFCB variations of GPS and COMPASS systems in near real time. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Remote Sensing |
| 研究领域[WOS] | Remote Sensing |
| 关键词[WOS] | GPS ; NETWORK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000323904900007 |
| 源URL | [http://119.78.226.72/handle/331011/18043]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Haojun,Zhou, Xuhua,Wu, Bin. Fast estimation and analysis of the inter-frequency clock bias for Block IIF satellites[J]. GPS SOLUTIONS,2013,17(3):347-355. |
| APA | Li, Haojun,Zhou, Xuhua,&Wu, Bin.(2013).Fast estimation and analysis of the inter-frequency clock bias for Block IIF satellites.GPS SOLUTIONS,17(3),347-355. |
| MLA | Li, Haojun,et al."Fast estimation and analysis of the inter-frequency clock bias for Block IIF satellites".GPS SOLUTIONS 17.3(2013):347-355. |
入库方式： OAI收割
来源：上海天文台
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