1. A method of suppressing noise in an environment of a magnetic resonance imaging system, the method comprising: using at least one primary coil and at least one auxiliary sensor different from the at least one primary coil to obtain multiple calibration measurements comprising a first plurality of calibration measurements obtained by the at least one auxiliary sensor and a corresponding second plurality of calibration measurements obtained by the at least one primary coil; estimating, based on the multiple calibration measurements, a transfer function 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 transfer function: 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 transfer function 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.