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JZF-1型校正方波发生器故障处理技术
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作者 焦阳 《四川电力技术》 1989年第2期51-53,共3页
JZF-1型校正方波发生器是在对电工产品进行绝缘放电测试时,甩来校准放电测试系统回路衰减系数及直线校正等试验的专用仪器。该仪器由内部干电池供电,故在使用时能提供与地完全隔离的输出方波,并且具有能提供任意单极性或双极性脉冲的特... JZF-1型校正方波发生器是在对电工产品进行绝缘放电测试时,甩来校准放电测试系统回路衰减系数及直线校正等试验的专用仪器。该仪器由内部干电池供电,故在使用时能提供与地完全隔离的输出方波,并且具有能提供任意单极性或双极性脉冲的特点,这样可以方便地与被测得的放电脉冲进行比较分析。 JZF-1校正方波发生器的主要用途是用来测定放电测试系统回路的衰减系数。 展开更多
关键词 校正方波 发生器 故障处理
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Interpolation of near offset using surface-related multiples 被引量:1
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作者 郭书娟 李振春 +2 位作者 仝兆岐 马方正 刘建辉 《Applied Geophysics》 SCIE CSCD 2011年第3期225-232,241,共9页
In this research, we present a seismic trace interpolation method which uses seismic data with surface-related multiples. It is different from conventional seismic data interpolation using information transformation o... In this research, we present a seismic trace interpolation method which uses seismic data with surface-related multiples. It is different from conventional seismic data interpolation using information transformation or extrapolation of adjacent channels for reconstruction of missing seismic data. In this method there are two steps, first, we construct pseudo-primaries by cross-correlation of surface multiple data to extract the missing near- offset information in multiples, which are not displayed in the acquired seismic record. Second, we correct the pseudo-primaries by applying a Least-squares Matching Filter (LMF) and RMS amplitude correction method in time and space sliding windows. Then the corrected pseudo-primaries can be used to fill the data gaps. The method is easy to implement, without the need to separate multiples and primaries. It extracts the seismic information contained by multiples for filling missing traces. The method is suitable for seismic data with surfacerelated multiples. 展开更多
关键词 Surface-related multiples Least-squares Matching Filter RMS amplitude correction seismic interpolation
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