| 摘要 |
A method for recording and pre-processing high fidelity vibratory seismic data includes measuring the motion of the vibrator (36) which is related to the vibrator applied force times a transfer function of minimum phase, causal, linar system relating the actual vibrator output with the measured vibrator motion, determining a ratio (52) by dividing the vibratory seismic data by the measured motion of the vibrator to remove the unknown applied force leaving the earcj reflectivity times a time derivative divided by a minimum phase function, minimum phase band pass filtering the resulting ratio and performing mimimum phase deconvolution to remove the time derivative divided by the transfer function of mimimum phase. The method may also include the steps of receiver ensemble deconvolution (56), statics correction (58), F-K filtering for noise (60), zero phase spiking deconvolution (64) and model dephasing (66). The actual signal that the vibrator (36) is sending into the ground is used in pre-processing.
|
