Signal thresholding apparatus, systems, and methods
AssigneeHalliburton Energy Services, Inc.
InventorsJ. Craig Woerpel, Bruce E. Cornish
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Abstract
In some embodiments, an apparatus and a system, as well as a method and an article, may include selecting a plurality of signal thresholds T(i)=i*(TMAX/N) for i=2 to N comprising a positive integer greater than one. TMAX may be equal to AMAX/R, where AMAX=a maximum peak amplitude of a signal, such as an acoustic borehole signal, and R=a root-mean-square amplitude of the signal. Applying the plurality of signal thresholds T(i) to the signal to determine a corresponding plurality of peak amplitudes A(i) and signal travel times for selected ones of the plurality of signal thresholds T(i) may also be included.
Claims1
An apparatus, comprising:
- a receiver to receive an acoustic borehole signal;
- a processor to couple to the receiver;
- and
- a module comprising instructions to direct the processor to select a plurality of signal thresholds T(i)=i*(Tmax/N) for i=2 to N comprising a positive integer greater than one, wherein Tmax=Amax/R, Amax=a maximum peak amplitude of the acoustic borehole signal, and R=a root-mean-square amplitude of the acoustic borehole signal and to apply the plurality of signal thresholds T(i) to the acoustic borehole signal to determine a corresponding plurality of peak amplitudes A(i) and signal travel times for selected ones of the plurality of signal thresholds T(i).
Dependencies are inferred from the claim text.