A new algorithm for the frequency offset in Doppler data
文献类型：期刊论文
| 作者 | Jia, PZ; Wu, LD |
| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2001-04-01 |
| 卷号 | 25期号:2页码:259-265 |
| 关键词 | Doppler data orbit improvement frequency offset |
| ISSN号 | 0275-1062 |
| 英文摘要 | Orbit improvement with Doppler data is confronted with the systematic errors caused by the frequency offset of satellite beacon and station receiver. How to estimate the frequency offset of each topocentric passage is a key problem in evaluating the accuracy of orbit determination. The method of computing the frequency offset with the Guier navigation proposed in Ref.[1] has been proved in practice to be effective. However, calculations of the Guier navigation are rather complex, so it is difficult to use this algorithm in setting up the software for computing ephemerides by numerical integration. In this paper, a new algorithm based on the block inversion of the coefficient matrix of the: normal equation is proposed. This algorithm merely requires the inversion of a 6 x 6 or 7 x 7 matrix, and then it is quite simple to calculate the frequency offset. As shown by simulations, the accuracy of orbit determination with the new algorithm is close to the Cramer-Rao lower bound, i.e., the theoretically optimal accuracy, and it is higher by about 15% than that of the Guier navigation algorithm. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000168937400018 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8180]  |
| 专题 | 紫金山天文台_空间目标与碎片观测研究基地 |
| 作者单位 | 1.Chinese Acad Sci, Inst Syst Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, PZ,Wu, LD. A new algorithm for the frequency offset in Doppler data[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2001,25(2):259-265. |
| APA | Jia, PZ,&Wu, LD.(2001).A new algorithm for the frequency offset in Doppler data.CHINESE ASTRONOMY AND ASTROPHYSICS,25(2),259-265. |
| MLA | Jia, PZ,et al."A new algorithm for the frequency offset in Doppler data".CHINESE ASTRONOMY AND ASTROPHYSICS 25.2(2001):259-265. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。