基于窗口移动中误差模型探测船载重力数据粗差  

Detection of Gross Errors in Ship-borne Gravity Data Based on Window-moving RMS Model

作　　者：邓凯亮[1,2] 黄贤源[1,3] 刘骁炜 陈欣[1,3] 

机构地区：[1]海军海洋测绘研究所,天津300061 [2]国防科学技术大学机电工程与自动化学院,湖南长沙410073 [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》2016年第3期7-9,共3页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41474012);国家重大科学仪器设备开发专项(2011YQ12004503);国防973计划(613219)

摘　　要：粗差探测是评价船载重力测量数据成果质量的重要内容。卫星测高反演重力场技术提供了海域全覆盖的重力场数值模型,其精度水平已满足探测船载重力测量数据粗差的精度要求。以卫星测高反演重力场模型为基础,提出了基于窗口移动中误差模型探测船载重力测量粗差的数据处理方法,其基本思路是:以卫星测高反演重力场数值模型作为背景场,计算船载重力测点处的测高重力值的差值,以差值作为输入量,等权构建中误差背景场,以开窗中误差背景场作为参考,按照平差思想探测船载重力测量数据的粗差。实验结果表明,依据本文方法能有效探测船载重力测量数据的粗差。Gross error detection is an important aspect of the evaluation results of ship-borne gravity measurement data quality. Altimetry gravity field inversion technique provides numerical gravity field model in full coverage of the sea,the accuracy level has been fully satisfied in detecting the gross errors of ship-borne gravity data. In this paper,based on the altimetry inversion gravity field model,the method of using window-moving RMS model is provided. The basic idea is: using satellite altimetry gravity inversion numerical model as a background field,to compute the difference between the measuring point and altimetry gravity value,using the difference between the amount as input to build the window-moving RMS model,and based on the adjustment thought to detect the gross errors of ship-borne gravity data. Experimental results showthat this method can effectively detect the gross errors of ship-borne gravity measurement data.

关 键 词：船载重力测量 粗差探测 中误差模型 背景场 窗口移动 

分 类 号：P223.39[天文地球—大地测量学与测量工程]