A Noise Attenuation Method for Land Inspection of Submarine Cables
A submarine cable and noise technology, which is applied in the attenuation field of submarine cable land survey noise, can solve the problems that data cannot be recovered well, satisfactory results cannot be achieved, and changes in amplitude and phase cannot be well described.
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[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 As shown, the present invention provides a kind of attenuation method of submarine cable ground survey noise, and it comprises the following steps:
[0033] 1) Using 3D high-order τ-p inverse transformation to simulate the original land survey seismic data with AVO (amplitude variation with offset) phenomenon, the land survey original seismic data is three-dimensional time domain seismic data;
[0034] Such as image 3As shown, the simulated land survey seismic data generated by 3Dτ-p inverse transformation has common receiver point shear-wave interference, in which the effective signal presents a hyperbolic form, and the shear-wave interference presents a low-frequency, low-noise linear form.
[0035] 2) Use 3D high-order and high-resolution τ-p transform to perform τ-p forward transformation on the original seismic data gen...
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