Signal Processing
The focus here is signal processing of BSEGY data, similar to the section on editing (sec 11), but with more emphasis on altering the data by traditional signal processing methods. Programs include:
- BREV 12.0.1 Reverse (a) channel order OR (b) polarity
- BABS 12.0.2 Rectify the data (absolute value).
- BSDC 12.0.3 Compute DC levels of each trace and show.
- BRDC 12.0.4 Remove DC levels of each trace.
- BINT 12.0.5 Integrate BSEGY data.
- BSRT 12.0.6 Sorts data by offset
- BRPT 12.0.7 Remove pre-trigger in header and shift data.
- BDIF 12.0.8 Differentiate BSEGY data.
- BEQU 12.0.9 Trace equalization of amplitude, BSEGY data.
- BSCL 12.0.10 Scale data in a profile by a determined or provided factor.
- BGAR 12.0.11 Exponential gain recovery by source to receiver offset.
- BGAZ 12.0.12 Exponential gain recover by depth gate for down-hole data.
- BAGC 12.0.13 Automatic Gain Control (AGC). Choice of single pole exponential envelope or zero-phase box-car envelope.
- BBAL 12.0.14 Balance amplitudes between two BSEGY data files such that they both have the same MAV = (MAV1 + MAV2)/2
- BSTK 12.0.15 Stacking data in a BSEGY file.
- BXCR 12.0.16 Auto- or Cross-correlation computed from a file or between two files.
- BNOS 12.0.17 Computes a band limited noise profile to match the aperture of a template case.
- BSHF 12.1.1 Static shift BSEGY data by headers or by a file of times, plus a bulk static shift.
- BSHP 12.2.1 Wiener Least Square Shaping filter. Can apply to data or an alternate file.
- BTOR 12.2.2 Apply PCA analysis (see GENBHOD 10.1.9 ) to headers of all the *.seg files in the bhod.lst file.
- GENBROT 12.2.3 Generates a bash script which will run the BROT program. That program will rotate the horizontal components of the down-hole data to a desired relationship to the source polarization.
- BROT 12.2.4 Rotates data based on horizontal component headers or a user supplied value.
- BFXT 12.3.1 Compute frequency-distance (FX) transform of a shot gather, or compute an inverse transform of amplitude, phase data sets.
- BCAR 12.3.2 Box car filter, both low- and high-pass options. Fast and specified by a moving average filter duration.
- BFIL 12.3.3 ARMA filter, Low-pass, Band-pass, or High-pass filters, minimum phase or zero phase, by Bilinear transform.
- BDCN 12.3.4 Minimum phase deconvolution.
- BFTR 12.3.5 Filter data with *.seg file or namelist file.
- BWHT 12.3.6 Non-linear whitening using AGC in overlapping band-pass filters.
Subsections
