CAJ | 학술논문

介绍了基于小波阈值法的测井曲线滤波原理,分析了现有小波阈值函数和阈值特点,提出了一种改进的小波阈值去噪法.通过 Heavisine 信号的仿真实验以及测井曲线实例表明,改进的小波阈值法在有效滤除测井信号中的噪声的同时又可以保留曲线的细节信息,在测井曲线去噪处理中得到很好的应用.
개소료기우소파역치법적측정곡선려파원리,분석료현유소파역치함수화역치특점,제출료일충개진적소파역치거조법.통과 Heavisine 신호적방진실험이급측정곡선실례표명,개진적소파역치법재유효려제측정신호중적조성적동시우가이보류곡선적세절신식,재측정곡선거조처리중득도흔호적응용.
The paper introduces the logging curves filtering principle based on wavelet thresholding method ,anlyses the thresholds and wavelet thresholding functions characteristics, then an improved wavelet threshold denoising method is proposed. The simulation experiment of Heavisine signal and logging curves example results show that, the improved wavelet thresholding method can preserve curves datails well while reducing noise efficiently and it can get good application in logging curves denoise processing.