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Statements

Subject Item
dbr:Fraser_Filter
rdf:type
yago:Object100002684 yago:Instrumentality103575240 yago:WikicatLinearFilters yago:Device103183080 yago:Artifact100021939 yago:Whole100003553 yago:Filter103339643 yago:PhysicalEntity100001930
rdfs:label
Fraser Filter
rdfs:comment
A Fraser Filter, named after Douglas Fraser, is typically used in geophysics when displaying VLF data. It is effectively the first derivative of the data. If represents the collected data then is the average of two values. Consider this value to be plotted between point 1 and point 2 and do the same with points 3 and 4: If represents the space between each station along the line then is the Fraser Filter of those four values. Since is constant, it can be ignored and the Fraser Filter considered to be.
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dbc:Geophysics dbc:Linear_filters
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10144353
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697310807
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dbc:Geophysics dbc:Linear_filters dbr:Very_Low_Frequency dbr:First_derivative dbr:Geophysics
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dbo:abstract
A Fraser Filter, named after Douglas Fraser, is typically used in geophysics when displaying VLF data. It is effectively the first derivative of the data. If represents the collected data then is the average of two values. Consider this value to be plotted between point 1 and point 2 and do the same with points 3 and 4: If represents the space between each station along the line then is the Fraser Filter of those four values. Since is constant, it can be ignored and the Fraser Filter considered to be.
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wikipedia-en:Fraser_Filter?oldid=697310807&ns=0
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1088
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wikipedia-en:Fraser_Filter