This paper evaluates various factors that influence frequency content during migration. The object is assessing the reasons for potential loss of bandwidth in migrated data.

In the following examples, the nature and cause of various factors that can impact the frequency content are summarized and examined to determine their effects on depth migration more than on time migration, or Kirchhoff migration more than wavefield extrapolation schemes.

We demonstrate that there is no inherent reason for the bandwidth of Kirchhoff depth-migrated data to be worse than other migrated data and offer recommendations to ensure optimal frequency content in the processed output...

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