The process sìsmico vibrating source, high fidelity with the separation of source.

摘要

b process su00ecsmico vibrating source, high fidelity with separation of source d .It is revealed a process of separating the effects of the response of the earth in vibratory energy from individual vibrators among multiple vibrators (VA - VD) for geophones (G1 - G5).In the generation of a seismic survey.In accordance with the procedure revealed, measurements of the vibrations generated in the effective source are made, in addition to the measurements of geophones vibration portrayed and reflective.Both in relation to a number of scans frequ00b3u00eancia.The vibrations of the source (VA - VD) and geophones (G1 - G5) are processed first in representations of the field of frequ00b3u00eancia, through discrete Fourier transformations.A matrix inverse of the vibrations of the source domain frequ00b3u00eancia recorded is then generated for each frequ00b3u00eancia.When the number of scans is equal to the number of vibrators (VA - VD).The matrix multiplicative inverse is simply the reverse of measurements of source; if the number of sweeps exceeds the number of vibrators (VA - VD).The generalized inverse matrix is the inverse of the original matrix.The inverse matrix for frequ00b3u00eancia is applied to vibration recorded of geophones that frequ00b3u00eancia, to derive the transfer function (HA HD), corresponding to the response of the earth.For each path of the vibrator - geophones in the survey.A weighting factor can be used to discount the effects of scans of behavior insufficient,And can be based on the ratio of the maximum and minimum values characteristic for the matrix inverse.By using the transfer functions derived (HA HD)A function of reflectivity of land can be derived for each path of the vibrator - geophones by applying a filter of the minimum phase transfer function separated vibrator - geophones.M the frequ00b3u00eancia.