at least one magnetic field actuator configured for generating an actuated magnetic field that at least partially cancels an outside magnetic field, thereby yielding a total residual magnetic field;

a plurality of coarse magnetometers respectively configured for coarsely detecting the total residual magnetic field and outputting a plurality of coarse error signals;

a plurality of fine magnetometers respectively configured for finely detecting the total residual magnetic field and outputting a plurality of fine error signals;

a coarse feedback control loop configured for coarsely controlling the actuated magnetic field at least partially based on at least one of the plurality of coarse error signals respectively output by at least one of the plurality of coarse magnetometers, thereby suppressing the total residual magnetic field at at least one of the plurality of fine magnetometers to a baseline level, such that the at least one of the plurality of fine magnetometers comes in-range;

a fine feedback control loop configured for finely controlling the actuated magnetic field at least partially based on at least one of the plurality of fine error signals respectively output by the at least one of the plurality of fine magnetometers that has come in-range; and

a management control loop configured for activating the fine feedback control loop to finely control the actuated magnetic field in a manner that further suppresses the total residual magnetic field at the at least one of the plurality of fine magnetometers that has come in-range to a lower level.