海洋测线网系统误差调整的秩亏网平差模型

The Rank-Defect Adjustment Model for Survey-line Systematic Errors in Marine Survey Net

提出了以测线为单位的测线网误差结构模型 ,发现和揭示了海洋测线网平差的秩亏特性 ,在此基础上 ,导出了海洋测线网系统误差处理的统一秩亏网平差模型 ,为测线网数据处理提供了实施方法 ,并从理论上证明了目前常用的半系统误差调整方式仅是本文秩亏网模型的特例。实例计算表明 。

The differences between two groups of survey values for crossing points are only used to check and evaluate the quality of observations in marine survey_line net,but have not been used to correct or adjust errors of observation yet.In this paper,the structure of systematic and random error in marine survey net is discuessed in details and the adjustment method of observations for marine survey net is studied.Based on the survey_line systematic error model,the formula of the rank_defect adjustment model are deduced according to the modern adjustment theory.An example of calculations using real observed data is carried out to demonstrate the effectiveness of this adjustment model.Moreover,the semi_systematic error correction method used now in marine gravity survey in China only is a special case of the adjustment model in this paper.