改进的滚动时窗法实现海底浅地层剖面反射层位自动拾取的研究  

RESEARCH ON AUTOMATIC PICKING OF THE REFLECTION HORIZONS OF SUBBOTTOM PROFILE BASED ON THE IMPROVED MOVING TIME-WINDOW METHOD

作　　者：罗进华[1] 丁维凤[1] 潘国富[1] 

机构地区：[1]国家海洋局第二海洋研究所,杭州310012

出　　处：《物探化探计算技术》2008年第5期363-367,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家海洋局青年海洋科学基金(2005309)

摘　　要：根据浅地层剖面记录的特点,在滚动时窗计算能量比值的基础上,提出了一种限制时窗滚动范围,并设定相邻道之间地层反射时间跳跃阈值来搜索浅地层剖面记录反射层位的方法。该方法由人工指定搜索起始点、时窗滚动的范围和相邻道之间拾取时间的跳跃阈值,然后由计算机从前后二次自动搜索反射层位。经实例表明,应用该方法能快速、准确地拾取浅地层剖面记录上的反射层位。This paper presents an efficient method for picking up the reflection horizons of seabed subbottom profile,based on limiting moving time-window to a proper range and setting jump threshold to the adjacent trace.Position of the initial points,the thresholds and the range of the moving time-window can be selected easily.The applications show that if above parameters selected properly,the algorithm can pick up the horizons very well.

关 键 词：浅地层剖面 反射层位 滚动时窗 能量比 自动拾取 

分 类 号：P631[天文地球—地质矿产勘探]