电子学报2013，Vol.41Issue(2)：402-406,5.DOI:10.3969/j.issn.0372-2112.2013.02.030
基于改进的小波变换的南极冰盖冻融探测
Antarctic Ice-Sheet Freeze-Thaw Detection Based on Improved Wavelet Transform
摘要
Abstract
When the double-Gaussian model of the current wavelet-transform algorithm fits the optimal threshold value of the dry and wet snow classification,it is easily affected by the initial value and has the shortcomings of consuming more time in selecting the typical sample zones. According to the fact,this paper proposed the improved wavelet-transform algorithm for the automatic threshold segmentation,that is,generalized Gaussian model automatically fits the optimal wet and dry snow classification threshold. The algorithm inherits and develops the advantage of ice-sheet freeze-thaw detection, which does not rely on the measured data and achieves the goal of Antarctic ice-sheet monitoring system business more effectively. By comparing and analyzing of the two algorithms, we can see that the improved algorithm improves the computational efficiency, usability and operability in the ice-sheet freeze-thaw detection as well as the accuracy of detection to some extent.关键词
冰盖冻融探测/最优阈值/改进的小波变换/广义高斯模型Key words
ice-sheet freeze-thaw detection/optimal threshold/ improved wavelet transform/generalized Gaussian model分类
天文与地球科学引用本文复制引用
王星东,熊章强,李新武,梁雷..基于改进的小波变换的南极冰盖冻融探测[J].电子学报,2013,41(2):402-406,5.基金项目
国家自然科学基金(No.41076129) （No.41076129）
国家863高技术研究发展计划(No.2008AA121702) （No.2008AA121702）
