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| 引用本文： | 江楠,徐天河,许艳. �й�IGSվ��·�������Ƽ���Ľ��㷨[J]. 大地测量与地球动力学, 2013, 33(2): 143-146 |
| 作者姓名： | 江楠 徐天河 许艳 |
| 作者单位： | 1. 长安大学地质工程与测绘学院,西安,710054 2. 地理信息工程国家重点实验室,西安710054;西安测绘研究所,西安 710054 |
| 基金项目： | 国家自然科学基金，高等学校全国优秀博士学位论文作者专项 |
| 摘 要： | ????????·??????????е????????????????С??????????????????????????????????????????????·????????н??????????????????????????Ч??????????·????????к???????????????????????·??Ч?????????·???????????????80%????? |
| 关 键 词： | IGS ??·????? α?????????? ??С?????? ??? |
| 收稿时间： | 2012-10-23 |
MULTIPATH ERROR ESTIMATION AND ITS IMPROVED ALGORITHM FOR CHINESE IGS STATIONS |
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| Jiang Nan,Xu Tianhe,Xu Yan. MULTIPATH ERROR ESTIMATION AND ITS IMPROVED ALGORITHM FOR CHINESE IGS STATIONS[J]. Journal of Geodesy and Geodynamics, 2013, 33(2): 143-146 | |
| Authors: | Jiang Nan Xu Tianhe Xu Yan |
| Affiliation: | 1)College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054 2)State Key Laboratory of Geo Information Engineering, Xi’an 710054 3)Xi’an Research Institute of Surveying and Mapping, Xi’an 710054 |
| Abstract: | Code Minus Carrier method can be used to estimate the primary multipath error in a certain accuracy level. Howerer there is still strong noise in the esitmated results of multipath. In order to solve the problem, Least Mean Squares（LMS） method is proposed for filtering the primary multipath error by setting appropriate filter length and step size parameter. Taking the advantage of repeating feature, LMS method can separate real multipath error from the estimated serial effectively. The numerical example shows that multipath effect can be reduced significantly and the percentage of multipath error correction can reach more than 80%, which will provide accurate model correction for navigation and positioning of user. |
| Keywords: | IGS multipath error Code Minus Carrier method（CMC） least mean squares filter |
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