黑龙江科技大学学报2016，Vol.26Issue(6)：687-690,704,5.DOI:10.3969/j.issn.2095-7262.2016.06.020
混合小波去噪在瞬变电磁资料处理中的应用
Application of mixed wavelet denoising method in TEM data processing
摘要
Abstract
This paper is an effort to improve the effect of wavelet threshold denoising on transient electromagnetic data processing.The effort is directed at applying a variety of improved wavelet threshold functions and the traditional wavelet threshold functions for filtering all the measured TEM data;and according to a certain criterion,selecting the best optimal threshold function of each point as the final denoising function.The comparison between the denoising effect of mixed wavelet and that of single improved wavelet reveals that,when applied in transient electromagnetic data processing,the mixed wavelet method may afford a better denoising effect than the single threshold denoising one,thanks to its more effective noise suppression and better abnormal signal clarification.An improvement in the mixed wavelet denoising function allows the selection of the optimal wavelet base suitable for each point,thus contributing to a better performance of the mixed wavelet denoising method.关键词
瞬变电磁/混合小波/小波去噪/阈值函数Key words
TEM/mixed wavelet/wavelet denoising/threshold functions分类
天文与地球科学引用本文复制引用
解海军,颜羽,董毅..混合小波去噪在瞬变电磁资料处理中的应用[J].黑龙江科技大学学报,2016,26(6):687-690,704,5.基金项目
西安科技大学科研培育基金项目(2015QDJ082) （2015QDJ082）
