Comparisons of five least-squares adaptive matched filtering methods in multiple suppression

نویسندگان

چکیده

Abstract In this paper, we comprehensively compare the application effects of five least-squares adaptive matched filtering methods (the single-channel, multichannel, equipoise pseudo multichannel and multichannel) for multiple suppression in three representative datasets with different degrees orthogonality. By introducing an error function, can quantitatively analyse influence terms filter length, normalized regularization factor, number channels, iteration number, amplitude ratio noise immunity. addition, provide corresponding optimal parameters or their selection principles. The comparison results show that: (i) dependence on orthogonality is not same these methods; only effectively reduce orthogonality; (ii) single-channel method relatively balanced all aspects; (iii) have a stronger shaping ability but generate larger errors; (iv) requires higher degree (v) derived from will be better reference values complex models field data suppression.

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ژورنال

عنوان ژورنال: Journal of Geophysics and Engineering

سال: 2022

ISSN: ['1742-2140', '1742-2132']

DOI: https://doi.org/10.1093/jge/gxac070