航空伽玛能谱测量数据分类图的自动编图系统  

AUTO-MAPPING SYSTEM FOR DATA CLASSIFYING MAP WITH AIRBORNE GAMMA-RAY SPECTROMETRIC DATA

作　　者：章晔[1] 张文斌[2] 范正国[2] 

机构地区：[1]中国地质大学 [2]地质矿产部航空物探遥感中心

出　　处：《铀矿地质》1992年第5期297-302,共6页Uranium Geology

摘　　要：航空伽玛能谱测量数据分类图是利用航空伽玛能谱测量资料编制岩性地质图的基础图件。本文介绍一种航空伽玛能谱测量数据分类图的自动编图系统。该系统由航空伽玛能谱测量资料的统计分析和其结果的绘图两部分组成。首先用先期的地质资料和均匀度图确定各岩性体的中心位置,用系统聚类分析求初始聚类中心,再用动态聚类分析分类,最后用专用绘图软件绘制分类结果图。应用该系统处理了青海省CDM中部地区的高灵敏度航空伽玛能谱测量资料,并绘制了1:20万航空伽玛能谱测量数据分类图。实例应用表明,可以用该系统有效地处理大数据量数据集,并具有简便、快速等特点。This paper presents an auto-mapping system for data classifying map with airborne gam- ma-ray spectrometric data. The system consists of a statistical classifying system for airborne gamma-ray spectrometric data and a special mapping system of the classification results. First, the centre of a lithological body was located with known geolocigal information and the map which is defined as degree of uniformity; the initial cluster centre was obtained from the systematic cluster analysis, then, the airborne gamma-ray spectrometric data were classified with the dynamic cluster analysis; finally, the map of the cluster was made up with the special software mapping. With the help of the system,the high sensitive airborne gamma-ray spectrometric data were interpreted in the central part of CDM in Qinhai Province and a data classifying map of airborne gamma-ray spectrometry (1:200000 scale) was mapped out. Examples of the field application show that this system can be effectively used to process a large quantity of data set and it is characterized by simplicity, rapidness and automation.

关 键 词：地质图 Γ能谱测量 分类 编图系统 

分 类 号：P283.7[天文地球—地图制图学与地理信息工程]