Method and apparatus for deriving a calibration filter, program, transmission of a program, computer, method for data processing using a filter of electromagnetic calibration, and data

摘要

Method and apparatus for deriving a calibration filter, program, transmission of a program, computer, method for data processing using a filter of electromagnetic calibration, and data a method to derive a calibration filter for electromagnetic data is provided.The method comprises providing a source (21, 22) of electromagnetic radiation and, subsequently, to measure the components of the electromagnetic field of the source (23, 24, 25) in a receiver when the source is sufficiently close to the receiver so that the signal on the signal downward dominate entire Tooth reflected from features below the receiver.This measurement can be used in the analysis of the field frequency (26, 28, 29) to extract the component signal and deriving a calibration filter down to the receiver. The method is repeated (27, 30) for each receiver used in a survey of electromagnetic survey.