摘要
随着信息获取手段越来越丰富,重力研究领域面临对大量不同类型数据的处理以及如何更好利用这些数据还原真实地球重力场等问题.利用配置法融合2种不同类型重力场数据来恢复某地区局部地球重力场为例,利用模拟数据分析不同大小的观测噪声和非稳态误差对数据融合结果的影响.模拟计算结果验证了配置法处理数据融合的有效性.数据融合结果对于精化地球重力场有较为显著的效果,同时对于不同大小的观测噪声和非稳态误差数据,数据融合结果均能获得一定的改善.
With the enrichment of information technology,gravity field is faced up with the processing of a great deal of various information as well as the problem of how to make full use of the data to restore the real gravity field of the earth. The paper,taking the restoration of a partial earth gravity field in a certain area by fusing two different kinds of gravity field data through collocation method as an example,utilizes the analogue data to analyze the influence of the observation noise of different scales and the non-steady error on the results of data fusion. Simulation tests show that the collocation method is effective for data fusion processing. Data fusion results have more significant effects on the elaboration of earth gravity field. At the same time,the observation noise of different scales and non-steady error data can improve the data fusion results to a certain extent.
出处
《成都大学学报（自然科学版）》
2016年第2期183-186,共4页
Journal of Chengdu University（Natural Science Edition）
基金
成都大学校青年基金(2014XJZ22)资助项目
关键词
数据融合
观测噪声
重力场数据
data fusion
observation noise
gravity field data
