5. Aliasing - 5. Aliasing Kurt J. Marfurt CPSGG The...

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Unformatted text preview: 5. Aliasing Kurt J. Marfurt CPSGG The University of Oklahoma Petroleum Geology and Geophysics 5-1 Learner Objectives After this section, you will be able to: Identify aliasing on prestack and post stack seismic data Define acquisition parameter required to prevent aliasing of a desired reflection dip at a desired frequency 5-2 Aliasing Fundamental concepts of aliasing Seismic data aliasing Temporal aliasing Spatial aliasing Seismic operator aliasing Geologic aliasing 5-3 5-4 Marfurt at Club 101 after class on Wednesdays Flashing strobe light on a rotating disk. Counter clockwise Flip Stationary Clockwise Strobe flashing at 0.0825s interval Continuous 5-5 (Lines and Newrick, 2004) Some aliasing videos 4-6 http://www.youtube.com/watch?v=xTo3gxsZOWo Snapshots of a clock at 55 min increment 4-7 http://www.youtube.com/watch?v=jQDjJRYmeWg&feature=related Video of a helicopter capture rate = 1/5 rotor speed 4-8 http://www.youtube.com/watch?v=mZ56Uum7VrU&feature=fvw Video of an airplane propeller from a camera phone 4-9 http://www.youtube.com/watch?v=70QlzUNmCuI&feature=related Strobe video of a water fall water falls up!...
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5. Aliasing - 5. Aliasing Kurt J. Marfurt CPSGG The...

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