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IN-SITU GAIN/PHASE CALIBRATION AND CHARACTERIZATION OF DOWNHOLE RECEIVER ELECTRONICS
IN-SITU GAIN/PHASE CALIBRATION AND CHARACTERIZATION OF DOWNHOLE RECEIVER ELECTRONICS
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机译:井下接收器电子的原位增益/相位校准和特性
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摘要
A logging tool and a method for in-situ, independent calibration of receiver amplifier electronics separately from transmitter electronics. A logging tool can perform in-situ gain and phase calibration on one or more receiver assemblies, each consisting of at least a receiver amplifier electronics and a receiver antenna, and based on a calculated gain and phase of the receiver assembly, determine the true antenna amplitude and phase associated with a measurement made by the receiver assembly. The logging tool can perform in-situ crosstalk measurement and calibration, by determining a crosstalk matrix for all of the receiver assemblies and for each receiver assembly, removing the crosstalk interference from the measurement made by the receiver assembly.
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