海底地形测量成果的质量检核评估(一):交叉点不符值数列构建  

Examination and Assessment of Bathymetric Surveying Products,Part Ⅰ:Design of Cross Point Discrepancy Array

作　　者：黄辰虎[1] 陆秀平[1] 刘胜旋[2] 边刚[3] 欧阳永忠[1] 黄贤源[1] 邓凯亮[1] 

机构地区：[1]海军海洋测绘研究所,天津300061 [2]中国地质调查局广州海洋地质调查局,广东广州510075 [3]海军大连舰艇学院海洋测绘系,辽宁大连116018

出　　处：《海洋测绘》2017年第2期11-16,共6页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41474012;41174062;41374018);国家重大科学仪器设备开发专项(2011YQ12004503)

摘　　要：分析了海底地形测量成果的多源异构和海量特性,指出合理构建交叉点不符值数列是开展数据质量评估及精化处理的关键。为避免格网法结果自身失真可能对评估造成的不确定性,充分准确挖掘交叉点不符值所隐含的粗差及系统性偏差等信息,提出应基于三角网构建海底地形曲面并计算全部水深交叉点不符值。结果表明,交叉点不符值数列构建结果具有唯一性,基于此可对海底地形成果可能隐含的误差作进一步探测并削弱。The multi-source heterogeneous and magnanimous characteristics of the bathymetric surveying products are analyzed, therefore the design of the cross point discrepancy array is the key step to the data quality assessment and the data purification.To avoid the uncertainty of the data assessment using the gridding method,the gross errors and systematic deviation included in the cross point discrepancy must be accurately acquired.So the triangulation nets are applied in the construction of the bathymetric surveying curves, and the cross point discrepancy of thedepth is calculated in this paper.The result shows that the design of the cross point discrepancy array is unique and the errors included in the cross point can be detected and weakened on this basis.

关 键 词：海底地形 多源 异构 粗差 系统性偏差 交叉点不符值 

分 类 号：P229.1[天文地球—大地测量学与测量工程]