| Rank-Defect Adjustment Model for Survey-Line Systematic Errors in Marine Survey Net |
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| 作者姓名： | LIU Yanchun LI Mingsan |
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| 作者单位： | DepartmentofHydrographyandMapping,DalianNavalAcademy,667JiefangRoad,Dalian116018,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina(No .40 0 71 0 70 ) . |
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| 摘 要： | In this paper,the structure of systematic and random errors in marine survey net are discussed in detail and the adjustment method for observations of marine survey net is studied,in which the rank-defect haracteristic is discovered first up to now.On the basis of the survey-line systematic error model,the formulae of the rank-defect adjustment model are deduced according to modern adjustment theory.An examle of calculations with really observed data is carried out to demonstrate the efficiency of this adjustment model.Moreover,it is proved that the semi-systematic error correction method used at present in marine gravimetry in China is a special case of the adjustment model presented in this paper.
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| 关 键 词： | 海洋测量网 误差模型 系统误差 随机误差 修正模型 测量误差 |
Rank-defect adjustment model for survey-line systematic errors in marine survey net |
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| Liu Yanchun,Li Mingsan,Huang Motao.Rank-Defect Adjustment Model for Survey-Line Systematic Errors in Marine Survey Net[J].Geo-Spatial Information Science,2002,5(4):14-20. |
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| Authors: | Liu Yanchun Li Mingsan Huang Motao |
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| Institution: | LIU Yanchun LI Mingsan HUANG Motao |
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| Abstract: | In this paper,the structure of systematic and random errors in marine survey net are discussed in detail and the adjustment method for observations of marine survey net is studied,in which the rank_defect characteristic is discovered first up to now.On the basis of the survey_line systematic error model,the formulae of the rank_defect adjustment model are deduced according to modern adjustment theory.An example of calculations with really observed data is carried out to demonstrate the efficiency of this adjustment model.Moreover,it is proved that the semi_systematic error correction method used at present in marine gravimetry in China is a special case of the adjustment model presented in this paper. |
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| Keywords: | marine survey net survey_line error structure rank_defect adjustment model |
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