摘要
航空物探数据的数据量大,坐标数据和场值数据的采样率不一致。如何有效地存储这些数据,是航空物探数据库结构设计中的关键技术问题。常规的存储方式存取速度慢,采用大字段存储方式,不仅能够解决坐标数据和场值数据的采样率不一致问题,而且能够减少记录条数、提高存取速度。
There exist large quantities of aerogeophysical survey data, and the sampling rate of the coordinate data is not the same as that of the field data. Therefore, the efficient storage of the data seems to be the key technical problem in designing aerogeophysical database structure. The speed of storing and picking up data by the routine storage methods is slow. The storage method of BLOB can not only solve the problem that the sampling rate of the coordinate data is not the same as that of the field data but also reduce the record number and speed up storing and picking up data.
出处
《物探与化探》
CAS
CSCD
2007年第6期581-584,共4页
Geophysical and Geochemical Exploration
基金
中国地质调查局"航空物探遥感数据库建设"实施项目(1212010350105)资助
