[1]王胜利,王庆,高旺,等.GNSS多系统基线解算中的病态性分析与评价[J].东南大学学报(自然科学版),2013,43(4):753-757.[doi:10.3969/j.issn.1001-0505.2013.04.015] 　Wang Shengli,Wang Qing,Gao Wang,et al.Analysis and valuation of ill-condition in baseline solution of GNSS multi-system[J].Journal of Southeast University (Natural Science Edition),2013,43(4):753-757.[doi:10.3969/j.issn.1001-0505.2013.04.015] 点击复制 GNSS多系统基线解算中的病态性分析与评价() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第4期

753-757

2013-07-20

文章信息/Info

Title:
Analysis and valuation of ill-condition in baseline solution of GNSS multi-system

1东南大学仪器科学与工程学院, 南京 210096; 2东南大学交通学院, 南京 210096; 3安徽理工大学测绘学院, 淮南 232001
Author(s):
1School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
2School of Transportation, Southeast University, Nanjing 210096, China
3School of Geodesy and Geomatics, Anhui University of Science and Technology, Huainan 232001, China

Keywords:

P228.1
DOI:
10.3969/j.issn.1001-0505.2013.04.015

Abstract:
Aiming at the different situations of satellites orbital altitude and angular velocity in GNSS(global navigation satellite system)multi-system, the ill-condition in baseline solution was analyzed and evaluated combined with the analysis theory on ill-conditioned system. First, the effect of ill-condition on the solution of parameters was analyzed. Then, form the viewpoint of satellites angular velocities, the ill-condition in independent baseline solution of the GPS(global positioning system), GLONASS(global navigation satellite system)and BDS(Beidou navigation satellite system)under different baseline-length data was studied by using the condition-number method. Finally, the ill-condition in multi-system integration was valuated. The experimental results show that the GLONASS satellites run fastest, so the ill-condition is the weakest and the coefficient matrix structure is the best. However, the ill-condition of the current BDS which mainly consists of high-orbit satellites is the strongest. Besides, the ill-condition in baseline solution is not related with the baseline length. For multi-system integration, the coefficient matrix structure is not obviously affected by the serious ill-condition of the BDS, which is conducive to the fast convergence of ambiguities resolution in baseline solution of the BDS.

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