【作者】 李兵海；

【导师】 杨武年；

【作者基本信息】 成都理工大学 ， 地球探测与信息技术， 2004， 硕士

【摘要】 对航空测量来说，传统的数据处理及异常分析方法难以识别盖层较厚的可地浸砂岩型铀矿的信息。随着找矿方向和目标类型从硬岩转移到可地浸砂岩型铀矿，如何改进数据处理方法和异常分析方法就日益紧迫起来。 论文针对勘查砂岩型铀矿系统分析了航测遥感技术，提出了综合利用物探遥感信息预测砂岩型铀矿的工作思路和航放数据处理的新方法，并制作了模拟反射率图，取得了如下成果： (1)建立了综合利用物探遥感信息寻找砂岩型铀矿的预测评价模式；充分发挥了多学科、多方法的优势，合理提取蕴含于各类地质资料中的有关成矿、控矿地质信息。有效的融合了遥感航测信息，提高了工作效率； (2)根据光学有关物理性质，制作的模拟反射率图，囊括了TM数据七个波段的信息，使得图像质量、地物分辨率得到了提高； (3)在航放数据处理过程中引入了小波分析，系统分析了小波在处理单点数据、测线数据、测区数据的应用效果；用试验数据证明了小波处理单点数据可得到较传统数据处理方法更为真实、理想的谱数据，能准确的识别主能量窗以外的信息；认为处理线数据，可以提取埋藏于噪音中的异常信息；处理测区数据，对消除航放数据的条带有一定的效果。更多还原

【Abstract】 For airborne survey , it is difficult to identify the information of the in-situ leachable sandstone type uranium deposits which are deep buried under ground by the traditional data processing and the traditional abnormal analysis method. With the change of prediction type from harder rock to in-situ leachable sandstone-type uranium deposits, it is urgent to improve the data processing method and abnormal analysis method.In this paper, the author analysed the application of airborne survey and remote sensing technology in the predicting in-situ leachable sandstone-type uranium deposits, and put forward an idea which synthetically utilizes information of airborne survey and remote sensing to predict the sandstone type uranium deposits , and a new method of data processing for airborne survey. The author has made an image of simulated reflectance and has achieved following results:(1) A predicted model which synthetically utilizes information of airborne survey and remote sensing to look for the sandstone type uranium deposit has been established. This model made full use of the advantage of multi-subjects and multi-methods, and reasonably extracted relative mineralization information in different geological data. The technique effectively integrates useful information of airborne survey and remote sensing in order to improves work efficiency.(2) According to physical property of optics, the image of simulated reflectance has been made. It includes all of the seven bands’ information of Landsat TM images, these images have higher quality and resolution.(3) The author applied wavelet analysis in the data processing of airborne radioactive survey, and analyzed the effect of wavelet used in spectrum data processing, line data processing and region data processing. The author had proved that the wavelet used in spectrum data processing can gain more true and more ideal information than traditional data processing method,and can accurately identify information which is beyond main energy windows by practice data. The author considered it is effective to extract abnormal information when the wavelet used in line data processing, and it is effective to eliminate the belt of airborne radioactive survey data when the wavelet used in region data processing.更多还原