海洋测绘2024，Vol.44Issue(4)：6-11,6.DOI:10.3969/j.issn.1671-3044.2024.04.002
基于半参数模型的海洋磁力测量系统误差补偿
Systematical error compensation of marine magnetic survey based on semiparametric model
摘要
Abstract
In view of the fact that the selected error model can't fully represent the change of systematical error in the systematical error compensation of marine magnetic survey,the semiparametric model is introduced for refinement.When using a simplified compensation model for survey line systematical error filtering and estimation,the nonparametric component representing the model error is added to make up for the deficiency of the selected error model in describing the actual error.The natural spline function method and L-curve method are used to solve the regularization matrix and regularization parameters,and the semiparametric model is solved by the compensated least square method.The experimental analysis shows that after the introduction of the semiparametric model,the inconsistent value of the intersection of the survey line network approaches 0,with a mean square error of 0.001nT,and the accuracy of the survey line network is significantly improved.The Akaike information criterion is used to further evaluate different compensation methods.It is found that the dependence of the compensation effect on the selected system error model is greatly reduced after the introduction of the semiparametric model,expanding the usage conditions of different system error models.关键词
海洋磁力测量/系统误差补偿/半参数模型/简化补偿模型/Akaike信息量准则Key words
marine magnetic survey/systematical error compensation/semiparametric model/simplified compensation model/Akaike information criterion分类
天文与地球科学引用本文复制引用
马晓宇,欧阳永忠,周巨锁,李正元,汤民强..基于半参数模型的海洋磁力测量系统误差补偿[J].海洋测绘,2024,44(4):6-11,6.基金项目
国家自然科学基金资助项目(42174013) （42174013）
自然资源部海洋环境探测技术与应用重点实验室自主设立课题资助项目(MESTA-2022-D006) （MESTA-2022-D006）
自然资源部海洋测绘重点实验室开放基金资助项目(2021B11). （2021B11）
