Techniques for noise suppression in an environment of a magnetic resonance imaging system

A method of suppressing noise in an environment of a magnetic resonance imaging system, the method comprising:

• obtaining, using at least one primary coil and at least one auxiliary sensor different from the at least one primary coil, multiple calibration signals comprising a first plurality of calibration signals and a corresponding second plurality of calibration signals by:
• obtaining the first plurality of calibration signals using the at least one auxiliary sensor, wherein each of the first plurality of calibration signals comprises multiple values;
• and
• obtaining the second plurality of calibration signals using the at least one primary coil, wherein each of the second plurality of calibration signals comprises multiple values;
• weighting the multiple calibration signals to obtain multiple weighted calibration signals at least in part by:
• weighting at least some of the first plurality of calibration signals using a weighting function;
• and
• weighting at least some of the second plurality of calibration signals using the weighting function;
• estimating, using the multiple weighted calibration signals, a transform that, when applied to noise received by the at least one auxiliary sensor, provides an estimate of noise received by the at least one primary coil;
• and
• after estimating the transform:
• receiving a magnetic resonance signal using the at least one primary coil;
• receiving a noise signal using the at least one auxiliary sensor;
• estimating noise present in the magnetic resonance signal received by the at least one primary coil by applying the transform to the noise signal received by the at least one auxiliary sensor to obtain a noise estimate;
• and
• suppressing noise in the magnetic resonance signal using the noise estimate.