【作者】 李明；

【导师】 李姗姗；

【作者基本信息】 解放军信息工程大学 ， 大地测量学与测量工程， 2007， 硕士

【摘要】 随着我国大地测量信息化进程的不断深入,研究建立以多元化重力场信息数据服务为基础,集数据存储、处理、分发和应用一体化的服务体系,不但有助于重力测量学的研究和应用,也符合国家大地测量信息化建设的需求。本文基于重力测量信息化建设的目的,在对重力场信息数据深入分析的基础上,对多元化重力场信息数据服务及其专业化应用展开研究,具有一定的理论和应用价值。论文研究的内容主要包括以下几个方面;1、分析了重力场信息的数据特点和内容,对多元化重力场信息数据进行了分类,并结合数据管理工作中的数据表结构深入讨论了各类数据的内容及其属性。2、探讨了陆地与海洋重力测量数据的处理流程;分析比较了不同数据分布情况下平均重力异常的拟合推估方法;研究并实现了单点高程异常与垂线偏差的快速计算。3、研究了多元化重力场信息数据共享环境,建立了数据模型、初步确定了数据接口。构建了多元化重力场信息数据库,说明了其构建过程、数据库功能及实现方法和需要注意的问题。4、结合重力场数据的实际应用讨论了Surfer在绘制重力场信息等值线图及平均重力异常插值的可用性,实现了用户自定义界面交互进行等值线图绘制、格网化插值计算的功能,说明了实现方法及注意问题。5、研究了基于多元化重力场信息数据库的重力场信息的可视化表现方法,实现了基于数据库的重力场数据空间分布特性的表现及叠加显示等值线图等数据表现功能。6、构建了多元化重力场信息服务实验平台,说明了系统的实现方法及工作流程,从实际应用的角度验证了研究的可操作性。更多还原

【Abstract】 With the fast development of the geodetic engineering information in our country, study the service system which is founded base on the multi-resource gravity field’s data services, by which the gravity data can be saved, processed, distributed and applied. Not only can the study of gravity field be helped, but also accord with the development of geodetic engineering information by the study. Multi-resource gravity field’s data services and its application are studied in this paper, which is based on the aim of the gravity field information and the study of the gravity field data. The main work is summarized as follow:1. The characteristic of gravity field data is studied and classified. The content and property of the each data is discussed which combine the data interface of the data management.2. The process of land gravimetry and marine gravimetry is discussed; the prediction methods of mean gravity anomalies in the different case of data source; the determination of the height anomaly and vertical on any point is studied.3. The data sharing environment of multi-resource gravity field is studied, the data model and the data interface is confirmed. The multi-resource gravimetric database is constructed, and the process of construction, the function of the database and its realization are illuminated.4. Base on the application of gravity data, the usability of Surfer in contouring and interpolation method is discussed, and the function is realized. The method and problem of that process is illuminated.5. The method of gravity data visualization which base on multi-resource gravimetric database is studied. The visual function is realized which the spatial distribution of gravity data and contour map.6. The experiment program of multi-resource gravimetric data service is realized, and the realization of this system and its flow line is illuminated. In that case, the maneuverability of the study in this paper is validated.更多还原