Method for the magnetic resonance examination of a measurement object and to a radio-frequency unit of a magnetic resonance imaging scanner

A method for the magnetic resonance examination of a measurement object, comprising:

• radiating a transmitted signal into the measurement object,
• picking up a response signal emitted by the measurement object in reaction to the transmitted signal, the response signal being at least intermittently picked up during a period of radiation of the transmitted signal,
• generating a measurement signal by correction of the response signal and reconstructing a piece of information about the measurement object from the measurement signal,
• generating a correction signal corresponding to the transmitted signal and using the correction signal for correction of the response signal and iteratively carrying out the following steps for correction of the response signal automatically:
• ascertaining a present state value of the measurement signal, then ascertaining at least one of a present phase value or a present amplitude value for the correction signal using an optimization method, the optimization method using the present state value of the measurement signal as an input,
• then modulating a present section of the correction signal that corresponds to a present section of the transmitted signal with the at least one of the present phase value or the present amplitude value,
• then generating a present section of the measurement signal by subtraction of the present section of the correction signal from a present section of the response signal that is picked up at a same time as the present section of the transmitted signal is radiated, and
• also using the respective present section of the measurement signal for reconstruction of the information about the measurement object.