Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 26, 2009
Patent Application Number
11587420
Date Filed
April 20, 2005
Patent Primary Examiner
Patent abstract
Waveforms for controlled source electromagnetic surveying. The waveforms have frequency spectra that include three or more frequencies spaced at substantially equal intervals on a logarithmic frequency scale and spanning a bandwidth of about one decade or more, at least three of which frequencies have approximately equal corresponding amplitudes.
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