SIMULATION OF REALISTIC SYNTHETIC REFLECTION SEQUENCES

It is useful to be able to calculate synthetic primary reflection sequ ences from which to generate synthetic seismic sections which can be u sed for testing new processing algorithms. However, these synthetic re flection sequences should closely match real properties found in recen t studies. Using the ARMA(1,1) model resulting from such studies to de scribe the correlation (or spectral) structure of the sequences, and b y matching moments up to fourth order (since the sequences are non-Gau ssian in practice), realistic sequences can be generated. A simple sch eme is provided which also eliminates the necessity of throwing away l arge numbers of simulated values at start-up. The procedure is illustr ated on three real sequences and is seen to reproduce all the importan t features.