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# Non-stationary inverse convolution

In this Appendix, I show that non-stationary filtering and inverse
filtering are true inverse processes. I also show that
the stationary stability theory is not valid for non-stationary
recursive inverse filtering: in general, the stability
of non-stationary inverse filtering is not guaranteed,
even if all possible filter-impulse responses are minimum phase.

Stanford Exploration Project

5/27/2001