Rapid Imaging of Towed Streamer EM Data Using the Optimal Synthetic Aperture Method

Zhdanov, Michael S.; Yoon, Daeung; Mattsson, Johan

doi:10.1109/lgrs.2016.2637919

Cited by 8 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The SA method is based on constructing a synthetic aperture source as a superposition of the spatially distributed sources located at the points Yoon and Zhdanov, 2015). It has been demonstrated by Yoon and Zhdanov (2015) and Zhdanov et al (2017) that the SA data can be calculated as a linear combination of the responses for all the transmitters:…”

Section: Sa Methods For the Towed Streamer Em Surveymentioning

confidence: 99%

“…where ( ) is the element of the SA response for the background field = ; is a forward operator for the normalized SA data, which is a function of the SA weights, . Note that, if all the SA weights, are equal to 1, then according to Zhdanov et al (2017), the corresponding data are called the SA data without steering. The values computed based on the RSA weights are called RSA data.…”

Section: B Robust Interpolation Of Em Fields To Virtual Receiversmentioning

confidence: 99%

“…Over the last several years this method has also been extended to the case of a low-frequency EM field used in marine geophysical exploration (e.g., Knaak et al, 2013;. To determine the optimal parameters of the SA method for marine EM surveys, an optimal SA (OSA) method had been developed Zhdanov et al, 2017). One of the practical difficulties of the OSA method is that it is sensitive to the background geoelectrical model and to the noise in the data.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Robust optimal synthetic aperture imaging of towed streamer electromagnetic data

Zhdanov

2018

SEG Technical Program Expanded Abstracts 2018

Self Cite

View full text Add to dashboard Cite

The synthetic aperture (SA) method has recently found applications in analysis of the low frequency marine controlled source electromagnetic data. It has been shown in numbers of publications that SA method can enhance the response from an anomalous target. However, the SA method may not only 'steer' the EM field in the area of interest, but also steer the noise, thus unreasonably amplifying the noise level. In addition, the current realizations of the SA method are themselves very sensitive to the noise in the data and to the parameters of the synthetic aperture. To overcome these difficulties, we have developed a robust SA method. The synthetic model study presented here shows that this method is stable with respect to noise and has a relatively high spatial resolution.

show abstract

Section: Sa Methods For the Towed Streamer Em Surveymentioning

confidence: 99%

Section: B Robust Interpolation Of Em Fields To Virtual Receiversmentioning

confidence: 99%