Six tests of sparse log decon

Data plots

Data panels have gained raw data on the left and the results of sparseness decon on the right. Observe how they almost invariably show the sparseness panel preserving signal polarity.

Sparse decon is applied on six different data sets referred as DATA4, DATA5, DATA6, DATA8, DATA11 and DATA12.

DATA4 was dug out from our SEP data server ($\Delta t$ =2 ms). Its origins are unknown.

DATA5 is a common-offset section from the Gulf of Mexico ($\Delta t$ =4 ms). It was Yang's ``discovery'' data set, in many ways still the most interesting data set, but with some problems noted.

DATA6 is a common-channel section from a 2-D line shot in Baja California (Lizzaralde et al., 2002) during the PESCADOR experiment ($\Delta t$ =4 ms). It was downloaded from the academic seismic portal at the University of Texas, Austin (http://www.ig.utexas.edu/sdc/)

DATA8, 11 and 12 are unprocessed, raw common-channel sections coming from 2-D lines shot offshore Washington state as part of the COAST project ($\Delta t$ =2 ms).

Six tests of sparse log decon