The Galperin source: A novel efficient multicomponent seismic source

Häusler, Mauro; Schmelzbach, Cédric; Sollberger, David

doi:10.1190/geo2018-0020.1

Cited by 9 publications

(7 citation statements)

References 15 publications

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“…A total number of 36 source locations are placed on a 4 m  4 m staggered grid and fully cover the survey area. We use a 3C Galperin source (Häusler et al, 2018)…”

Section: Data Acquisition and Pre-processingmentioning

confidence: 99%

“…A total number of 36 source locations are placed on a 4 m

\times

4 m staggered grid and fully cover the survey area. We use a 3C Galperin source (Häusler et al., 2018) to generate three orthogonal single‐force sources, namely

U

V

, and

W

sources, on each source location, respectively. The

U

source is generated by a single force along X direction with a dipping angle of

α

= 35.

normal3 °

, and the

V

and

W

sources are generated by rotating the

U

source with

2 \times β = normal240 °

and

β = normal120 °

in the horizontal (X‐Y) plane (Figures 2 and 6 in Häusler et al., 2018), respectively.…”

Section: Data Acquisition and Pre‐processingmentioning

confidence: 99%

“…We use a 3C Galperin source (Häusler et al., 2018) to generate three orthogonal single‐force sources, namely

U

V

, and

W

sources, on each source location, respectively. The

U

source is generated by a single force along X direction with a dipping angle of

α

= 35.

normal3 °

, and the

V

and

W

sources are generated by rotating the

U

source with

2 \times β = normal240 °

and

β = normal120 °

in the horizontal (X‐Y) plane (Figures 2 and 6 in Häusler et al., 2018), respectively. The Galperin sources can be projected on the Cartesian coordinates via

(][, \begin{matrix} center U \\ center V \\ center W \end{matrix}) = (][, \begin{matrix} center \cos α & center 0 & center \sin α \\ center \cos α \cos 2 β & center \cos α \sin 2 β & center \sin α \\ center \cos α \cos β & center \cos α \sin β & center \sin α \end{matrix}) (][, \begin{matrix} center X \\ center Y \\ center Z \end{matrix}) .

…”

Section: Data Acquisition and Pre‐processingmentioning

confidence: 99%

“…Figures 2 and 6 inHäusler et al, 2018), respectively. The Galperin sources can be projected on the Cartesian coordinates via…”

mentioning

confidence: 99%

“…The filled triangles represent the receivers' location for coarse-grid reference data acquired on the same day. The dense-grid data (triangles) is acquired during five days.rotating the U source with 2 240 Figures 2 and 6 inHäusler et al, 2018), respectively. The Galperin sources can be projected on the Cartesian coordinates via…”

mentioning

confidence: 99%

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Random‐Objective Waveform Inversion of 3D‐9C Shallow‐Seismic Field Data

2021

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Full-waveform inversion (FWI) has gained increasing attention in the reconstruction of Earth's structures. One typical problem FWI faces is the ill-posedness of the inverse problem, which may make FWI converging to a local minimum. A common practical way to mitigate this problem is to use an appropriate initial model and adopt a multiscale strategy to progressively include the waveform of shorter wavelength (Bunks et al., 1995). Another approach is to use a more convex objective function that exhibits less local minima

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“…A total number of 36 source locations are placed on a 4 m  4 m staggered grid and fully cover the survey area. We use a 3C Galperin source (Häusler et al, 2018)…”

Section: Data Acquisition and Pre-processingmentioning

confidence: 99%

“…A total number of 36 source locations are placed on a 4 m

\times

4 m staggered grid and fully cover the survey area. We use a 3C Galperin source (Häusler et al., 2018) to generate three orthogonal single‐force sources, namely

U

V

, and

W

sources, on each source location, respectively. The

U

source is generated by a single force along X direction with a dipping angle of

α

= 35.

normal3 °

, and the

V

and

W

sources are generated by rotating the

U

source with

2 \times β = normal240 °

and

β = normal120 °

in the horizontal (X‐Y) plane (Figures 2 and 6 in Häusler et al., 2018), respectively.…”

Section: Data Acquisition and Pre‐processingmentioning

confidence: 99%

“…We use a 3C Galperin source (Häusler et al., 2018) to generate three orthogonal single‐force sources, namely

U

V

, and

W

sources, on each source location, respectively. The

U

source is generated by a single force along X direction with a dipping angle of

α

= 35.

normal3 °

, and the

V

and

W

sources are generated by rotating the

U

source with

2 \times β = normal240 °

and

β = normal120 °

in the horizontal (X‐Y) plane (Figures 2 and 6 in Häusler et al., 2018), respectively. The Galperin sources can be projected on the Cartesian coordinates via