1-6 OF 6
Results shown limited to content with bounding coordinates.
Nobuyasu Hirabayashi
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

A matched filter for S-wave sonic imaging

Nobuyasu Hirabayashi, Leon Dahlhaus, Rajeev Kumar, Yevgeniy Karpekin
Published: 13 May 2022
Geophysics (2022) 87 (4): D137–D146.
DOI: https://doi.org/10.1190/geo2021-0547.1
FIGURES | View All (13)
PDF
Purchase
Add to Citation Manager
Journal Article

Beamform processing for sonic imaging using monopole and dipole sources

Nobuyasu Hirabayashi
Published: 16 December 2020
Geophysics (2021) 86 (1): D1–D14.
DOI: https://doi.org/10.1190/geo2020-0235.1
FIGURES | View All (23)
PDF
Purchase
Add to Citation Manager
Journal Article

Wavefield separation for borehole acoustic reflection survey using parametric decomposition and waveform inversion

Nobuyasu Hirabayashi, W. Scott Leaney
Published: 27 May 2019
Geophysics (2019) 84 (4): D151–D159.
DOI: https://doi.org/10.1190/geo2018-0330.1
FIGURES | View All (8)
PDF
Purchase
Add to Citation Manager
Journal Article

Characteristics of waveforms recorded by azimuthally spaced hydrophones of sonic logging tool for incident plane waves

Nobuyasu Hirabayashi, Naoki Sakiyama, Toru Ikegami
Published: 25 September 2017
Geophysics (2017) 82 (6): D353–D368.
DOI: https://doi.org/10.1190/geo2017-0201.1
FIGURES | View All (18)
PDF
Purchase
Add to Citation Manager
Journal Article

Reflector imaging using trial reflector and crosscorrelation: Application to fracture imaging for sonic data

Nobuyasu Hirabayashi
Published: 13 September 2016
Geophysics (2016) 81 (6): S433–S446.
DOI: https://doi.org/10.1190/geo2016-0046.1
FIGURES | View All (13)
PDF
Purchase
Add to Citation Manager
Journal Article

Real-time event location using model-based estimation of arrival times and back azimuths of seismic phases

Nobuyasu Hirabayashi
Published: 26 February 2016
Geophysics (2016) 81 (2): KS25–KS40.
DOI: https://doi.org/10.1190/geo2014-0357.1
FIGURES | View All (17)
PDF
Purchase
Add to Citation Manager