open worldMedian filter behaviour with ismic data1
期刊名称： Geophysical Prospecting
forests
young man作者： G. Duncan,G. Beresfordwhole
年份： 2010年
期号： 第3期炫耀英语>广外培训
匿名是什么意思
关键词： petroleum;geosciences;ismic surveys;data processing;ismic高考后出国留学
waves;attenuation;algorithms;filters;petroleum industry
摘要：Median filters may be ud with ismic data to attenuate coherent wavefields. An example is the attenuation of the downgoing wavefield in VSP data processing. The filter is applied across the traces in the 'direction' of the wavefield. The final result is given by subtracting the filtered version of the record from the original record. This method of median filtering may be called 'median filtering operated
英文书信格式范文
in subtraction'. The method may be extended by automatically estimating the slowness of coherent wavefields on a record. The filter is then applied in a time-and-space varying manner across the record on the basis of the slowness values at each point on the record. Median filters are non-linear and hence their behaviour is more difficult to determine than linear filters. However, there are a number of methods that may be
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