Difference between revisions of "Dictionary:Correlation ghost"
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Nonlinearities in generating a vibroseis signal introduce second harmonics. The correlation of reflected second harmonics with the generated frequency produces correlation ghosts that follow the signal for a downsweep but anticipate it for an upsweep. | Nonlinearities in generating a vibroseis signal introduce second harmonics. The correlation of reflected second harmonics with the generated frequency produces correlation ghosts that follow the signal for a downsweep but anticipate it for an upsweep. | ||
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Latest revision as of 18:24, 10 April 2017
Nonlinearities in generating a vibroseis signal introduce second harmonics. The correlation of reflected second harmonics with the generated frequency produces correlation ghosts that follow the signal for a downsweep but anticipate it for an upsweep.
